Dr. YL Sumal Nandasena

Dr Y. L. Sumal Nandasena is a board-certified Specialist in Public Health. He possesses over 24 years of experience spanning clinical medicine, public health practice, health administration, and academia. Dr Nandasena holds postgraduate qualifications in Community Medicine and Sociology, reflecting a multidisciplinary approach to population health. His academic work integrates epidemiology, health systems research, and social determinants of health.

His research portfolio includes 40+ peer-reviewed publications in indexed international and national journals, with contributions in areas such as air pollution and health, tuberculosis, non-communicable diseases, and health systems performance. He has also authored multiple books and technical reports, including national policy analyses and practical guides on Geographic Information Systems (GIS) in health.

Dr Nandasena has secured and led numerous national and international research and consultancy projects, collaborating with various international organisations. His work includes large-scale national studies, program evaluations, and methodological innovations in epidemiological research and health system strengthening.

He has held senior leadership positions within the Sri Lankan health system, including Deputy Provincial Director of Health Services (Western Province) and Regional Director of Health Services (Kalutara Districts) at the Ministry of Health, Sri Lanka, where he oversaw both preventive and curative health services and contributed to policy implementation and system reforms.

His expertise in Geographic Information Systems (GIS) and spatial epidemiology has been applied to national-level health planning, including primary health care empanelment, mapping of health facilities, and resource allocation strategies. Dr Nandasena is actively involved in postgraduate teaching and supervision, having guided numerous MSc, MD, and MPhil research projects. He also contributes to professional training programmes in epidemiology, research methods, and GIS for health professionals.

Life member and fellow – College of Community Physicians of Sri Lanka

Life member – Sri Lanka Medical Association

Member of the Menopause Society of Sri Lanka

Trustee – Society of Health Research and Innovations

Spatial epidemiology and GIS-enabled health systems research, with emphasis on primary health care strengthening, environmental and air pollution health effects, tuberculosis and NCD control, and monitoring and evaluation of public health interventions.

Nandasena, S., Wijewickrama, B. A. O., & Samarakoon, M. A. S. C. (2026). Understanding the Sri Lankan patient psyche and health pluralism: A strategic imperative for health system leaders. Sri Lanka Journal of Medical Administration, 26(2). https://doi.org/10.4038/sljma.v26i2.5598

Wickremasinghe, R., Tipre, M., Perera, R., Godamunne, P., Larson, R. R., Leader, M., Lungu, C. T., Wimalasiri, U., Perera, P., & Nandasena, S. (2025). Effect of biomass fuel use on neonatal outcomes: A cohort study of pregnant females. International Journal of Environmental Research and Public Health, 22(9), 1336. https://doi.org/10.3390/ijerph22091336

Withana, S. S., Mendis, K., Liyanage, U. P., et al. (2025). Ecology of healthcare in an urban and rural area of Gampaha district of Sri Lanka: A community-based prospective study. BMC Health Services Research, 25, 1123. https://doi.org/10.1186/s12913-025-13337-w

Sasanka, S. G. D., Pathirana, W. P. Y. G., Nandasena, S., Samarasighe, Y. K., Rathnayaka, U., & Wickramasinghe, C. (2025). Training evaluation report on modified WHO hypertension protocol and Simple App software. International Journal of Advance Research, Ideas and Innovations in Technology, 11(1).

Nandasena, S., Gamage, A., Periyasamy, N., Rismy, M., Balachandran, K., & Kasturiratne, A. (2023). The impact of COVID-19 on healthcare accessibility and financial risk protection in Sri Lanka. Ceylon Medical Journal, 68(S1), 27–33.

Pathirana, W. P. Y. G., Sasanka, S. G. D., Nandasena, S., Kosala, Y., Rathnayaka, U., & Wickramasinghe, C. (2023). Clinical audit on diagnosis and management of hypertension in a primary medical care setting in Sri Lanka. International Journal of Advance Research, Ideas and Innovations in Technology, 9(2).

Ranawaka, N., Nandasena, S., & De Alwis, S. (2022). Direct out-of-pocket expenditure of tuberculosis treatment in intensive phase in Kalutara District, Sri Lanka. Indian Journal of Tuberculosis. https://doi.org/10.1016/j.ijtb.2022.06.003

Ranathunga, N., Perera, P., Nandasena, S., Sathiakumar, N., Kasturiratne, A., & Wickremasinghe, R. (2022). Effects of indoor air pollution on the development of children under five years of age in Sri Lanka. Atmosphere, 13, 509. https://doi.org/10.3390/atmos13040509

Hettiarachchi, C. A., Nandasena, S., & Arnold, M. (2021). Attitudes of manufacturers, law enforcing officers and consumers on Sri Lankan labelling regulations: A qualitative study. Journal of the College of Community Physicians of Sri Lanka, 27(1).

Ranathunga, N., Perera, P., Nandasena, S., Sathiakumar, N., Kasturiratne, A., & Wickremasinghe, R. (2021). Effects of indoor air pollution due to solid fuel combustion on physical growth of children under five in Sri Lanka. PLOS One. https://doi.org/10.1371/journal.pone.0252230

Wanninayake, I., & Nandasena, S. (2021). Reducing job-related stress among nursing officers in a base hospital in Sri Lanka. International Journal of Advanced Research.

Ratnapalan, S., Perera, N., Wei, X., Samaraweera, S., Nandasena, S., Liyanage, P., Fernando, R. M. S. D., & Dabrera, T. M. E. (2021). Current experience and future challenges of COVID-19 in Sri Lanka: An auto-ethnographic study. Public Health Open Access.

Ranawaka, N., Nandasena, S., & De Alwis, S. (2021). Noncompliance of treatment among tuberculosis patients in intensive phase at Kalutara District of Sri Lanka. Indian Journal of Tuberculosis, 68(2), 266–271.

Wanninayake, I., & Nandasena, S. (2020). Analysis of prison health services in relation to strengthening service delivery. Sri Lanka Journal of Medical Administration, 21(1), 62–65.

Hettiarachchi, C. A., Nandasena, S., & Wardle, J. (2020). Process of registrations under food law: A comparative review of New South Wales and Sri Lankan contexts. Journal of the College of Community Physicians of Sri Lanka, 26(4).

Gamlath, L., Nandasena, S., de Silva, P., Morrell, S., Linhart, C., Lin, S., Sharpe, A., Nathan, S., & Taylor, R. (2020). Community intervention for cardiovascular disease risk factors in Kalutara, Sri Lanka. BMC Cardiovascular Disorders, 20, 203.

Ranathunga, N., Perera, P., Nandasena, S., Sathiakumar, N., Kasturiratne, A., & Wickremasinghe, R. (2019). Effect of household air pollution due to solid fuel combustion on childhood respiratory diseases in Sri Lanka. BMC Pediatrics, 19, 306.

Fernando, E. G., & Nandasena, S. (2019). Attendance to non-communicable disease screening services and its associated factors among rural adults in Sri Lanka. Journal of Health Science.

Jayasinghe, V., & Nandasena, S. (2018). Post mastectomy pain syndrome in Sri Lanka. Journal of the College of Community Physicians of Sri Lanka, 24(2), 97–102.

Hettiarachchi, C. A., Arnold, S. M., & Nandasena, S. (2018). Strengths and deficiencies of beverage labelling regulation in Sri Lanka. Journal of the College of Community Physicians of Sri Lanka.

Nandasena, S., Senavirathna, C., Munasinghe, C., Wijesena, C., & Sucharitharathna, R. (2018). Characteristics and sputum conversion of tuberculosis patients in Kalutara, Sri Lanka. Indian Journal of Tuberculosis.

Kishi, R., Zhang, J. J., Ha, E. H., Chen, P. C., Tian, Y., Xia, Y., Tsuchiya, K. J., Nakai, K., Kim, S., Hong, S. J., Lee, J. R., Mohamed, H. J. B. J., Parajuli, R. P., Adair, L. S., Chong, Y. S., Guo, Y. L., Wang, S. L., Nishijo, M., Kido, T., Tai, P. T., & Nandasena, S. (2017). Birth cohort consortium of Asia: Current and future perspectives. Epidemiology, 28(S1).

Gamlath, L., Nandasena, S., de Silva, P., Linhart, C., Ngo, A., Morrell, S., Nathan, S., Sharpe, A., & Taylor, R. (2017). Differentials in cardiovascular risk factors and diabetes by socioeconomic status and sex in Sri Lanka. Asia Pacific Journal of Public Health.

Nandasena, S., Anuruddha, P., & Perera, S. (2016). One-sided partial hearing loss due to acoustic neuroma. International Journal of Scientific Research.

Phillips, M. J., Smith, E. A., Mosquin, P. L., Chartier, R., Nandasena, S., Bronstein, K., Elledge, M. F., Thornburg, V., Thornburg, J., & Brown, L. M. (2016). Respiratory health effects and personal PM2.5 exposure from cooking indoors. International Journal of Environmental Research and Public Health, 13(8), 791.

Chartier, R., Phillips, M., Mosquin, P., Elledge, M., Bronstein, K., Nandasena, S., Thornburg, V., Thornburg, J., & Rodes, C. (2016). A comparative study of human exposure to household air pollution from cookstoves in Sri Lanka. Indoor Air.

Chandrasinghe, P., Fernando, R., Nandasena, S., & Pathmeswaran, A. (2015). Epidemiology of goitre in Sri Lanka using GIS mapping. World Journal of Endocrine Surgery.

Nandasena, S., Wickremasinghe, A. R., & Sathiakumar, N. (2013). Indoor air pollution and respiratory health of children in developing countries. World Journal of Clinical Pediatrics, 2(2), 6–15.

Wickremasinghe, A. R., Peiris, R. J., Nandasena, S., Tipre, M., Delzell, E., & Sathiakumar, N. (2013). Capacity building in environmental and occupational health in Sri Lanka. American Journal of Industrial Medicine.

Elledge, M. F., Phillips, M. J., Thornburg, V. E., Everett, K., & Nandasena, S. (2012). Profile of biomass stove use in Sri Lanka. International Journal of Environmental Research and Public Health.

Nandasena, S., Wickremasinghe, A. R., & Sathiakumar, N. (2012). Respiratory health status of children exposed to different air pollution settings. American Journal of Industrial Medicine.

Nandasena, S., Wickremasinghe, A. R., Lee, K., & Sathiakumar, N. (2012). Indoor fine particle pollution exposure due to secondhand smoke. American Journal of Industrial Medicine.

Nandasena, S., Wickremasinghe, A. R., & Sathiakumar, N. (2012). Biomass fuel use for cooking in Sri Lanka. American Journal of Industrial Medicine.

Nandasena, S., Wickremasinghe, A. R., & Sathiakumar, N. (2012). Air pollution and public health in Sri Lanka. Journal of the College of Community Physicians of Sri Lanka.

Nandasena, S., Wickremasinghe, A. R., & Sathiakumar, N. (2011). Air pollution exposure characterization and health effects. Epidemiology.

Nandasena, Y. L. S., Wickremasinghe, A. R., & Sathiakumar, N. (2010). Air pollution and health in Sri Lanka: A review of epidemiologic studies. BMC Public Health, 10, 300.

Perera, G. B. S., Emmanuel, R., & Nandasena, Y. L. S. (2010). Urban air pollution and mitigation options in Sri Lanka. Proceedings of the Institution of Civil Engineers: Urban Design and Planning.

Lee, J., Lim, S., Lee, K., Guo, X., Kamath, R., Yamato, H., Abas, A. L., Nandasena, S., Nafees, A. A., & Sathiakumar, N. (2010). Secondhand smoke exposure in indoor public places in seven Asian countries. International Journal of Hygiene and Environmental Health.

Nandasena, Y. L. S., & De Silva, C. (2008). Growth pattern and feeding practices of infants at nine months of age. Journal of the College of Community Physicians of Sri Lanka.

Perera, G. B. S., Emmanuel, R., Nandasena, Y. L. S., & Premasiri, H. D. S. (2007). Exposure to aerosol pollution and respiratory symptoms in Sri Lanka. Built Environment Sri Lanka.

Pathmeswaran, A., Kasturiratne, A., Fonseka, M., Nandasena, S., Lalloo, D. G., & de Silva, H. J. (2006). Identifying the biting species in snakebite by clinical features. Transactions of the Royal Society of Tropical Medicine and Hygiene.

Kariyawasam, S. H., Nanayakkara, D. N., Mohottiarachchi, M. A. C. P., & Nandasena, Y. L. S. (2005). Mothers self-medicating children: A descriptive study. Sri Lanka Journal of Child Health.

Feasibility Testing and Validation of the Flexible Interview for ICD-11 (FLII-11), Sri Lanka – Lead Researcher; World Health Organization collaboration assessing diagnostic validity and feasibility for national mental health survey implementation.

Prenatal and Early Childhood Biomass Smoke Exposure and Child Neurodevelopment – Co-investigator; National Institutes of Health (NIH), USA (Grant No: R01ES023492); longitudinal cohort study on environmental exposures and neurodevelopment.

Particulate Matter and Black Carbon Exposure and Respiratory Health in Sri Lankan Children (GRIP Project) – Principal Investigator; National Institutes of Health (NIH), USA (Grant No: 1R01TW009401) - cohort study assessing air pollution exposure and respiratory outcomes.

Prenatal Exposure to Solid Fuel Smoke and Birth Outcomes in Sri Lanka – Co-investigator; National Institutes of Health (NIH), USA (Grant No: 5R21ES018730); study on biomass smoke exposure and birth outcomes.

Effectiveness of Primary Health Care (PHC) Interventions for Prevention and Control of Non-Communicable Diseases in Kalutara District – Co-investigator; Australian Government–funded study evaluating community-based PHC interventions.

Study on Particulate Matter and Black Carbon Exposure and Respiratory Health in Children (Sri Lanka) – Principal Investigator; National Institutes of Health–supported environmental epidemiology research.

Dr. Nithin Ranawaka, A project to reduce noncompliance and direct out of pocket expenditure of tuberculosis treatment in intensive phase at Kalutara District, Sri Lanka, MD (Medical Administration) (2023- Completed)), Postgraduate Institute of Medicine, University of Colombo.

Dr P.H. Wijenayake, A project to enhance the effectiveness of the janitorial service staff of Lady Ridgeway children’s Hospital in Sri Lanka, MD (Medical Administration) (2023- Completed)), Postgraduate Institute of Medicine, University of Colombo.

Dr. C.A. Hettiarachchi, Compliance of labels of beverages to the food labeling regulation and effectiveness of an advocacy package in improving adherence of the food industry to labeling regulations, MD Community Medicine Dissertation (2018 – Completed), Postgraduate Institute of Medicine, University of Colombo.

Dr. S. S. Withana (2017 – 2021), Factors Associated with Symptom Prevalence and Health Care Seeking Behaviour In Gampaha District Sri Lanka, Master of Philosophy Degree, Faculty of Graduate Studies, University of Kelaniya.

 Dr. Nithin Ranawaka, Assessment of noncompliance of Tuberculosis Treatment in intensive phase at Kalutara District; MSc (Medical Administration) (2018- Completed)), Postgraduate Institute of Medicine, University of Colombo.

Dr. Vidura Jayasighe, Post Mastectomy Pain Syndrome (PMPS) and quality of life of female had underwent mastectomy followed up at National Cancer Institute Maharagama, MSc Community Medicine Dissertation (2016), Postgraduate Institute of Medicine, University of Colombo.

Dr. Eroma Fernando, Selected health screening practices and factors associated with utilization of government health screening services among adults (35 to 65 years of age) in Dimbulagala Medical Officer of Health area, MSc Community Medicine Dissertation (2016), Postgraduate Institute of Medicine, University of Colombo.

Dr. BHWK De Silva, Knowledge, attitudes and practices of three wheeler drivers on selected road safety rules in Horana Municipal Council Area, Diploma in Health Sector Disaster Management (2016), Postgraduate Institute of Medicine, University of Colombo.

Dr. Indika Wanninayake, reducing job related stress among nursing officers in   Base Hospital Horana, MD Medical Administration research project (2017), Postgraduate Institute of Medicine, University of Colombo.

Dr. Anjana Ambagahawita, Knowledge, reported practices and their associated factors on disaster preparedness among persons aged 15-59 years in Medical Officer of Health area, Agalawatta (2015), MSc Community Medicine Dissertation, Postgraduate Institute of Medicine, University of Colombo.

Dr. S.G.K. Wickramaratne, Knowledge and Practices of Public Health Inspectors regarding prevention of diarrheal diseases among Internally Displaced Persons due to floods in Kalutara district (2015), Diploma in Health Sector Disaster Management, Postgraduate Institute of Medicine, University of Colombo.

Nandasena, S., Kolonne, E., Dissanayake, N., Cader, M., & Gamage, S. (2026, February 15–17). Discrepancies in tuberculosis death reporting in Sri Lanka [Abstract]. Annual Academic Sessions 2026, Sri Lanka College of Pulmonologists, Colombo, Sri Lanka.

Nandasena, S., Withana, K., Jayawardhana, R., Perera, N., & Cader, M. (2026, February 15–17). Mapping tuberculosis research in Sri Lanka: A scoping review of evidence, trends, and gaps [Abstract]. Annual Academic Sessions 2026, Sri Lanka College of Pulmonologists, Colombo, Sri Lanka.

Liyanage A.D.M.D., Dharmawardhana M.P., Gunawardana D.S.K.D., Ananda P.H.R.V., Nandasena S., Karunatilaka M.N., Perera G.A.C., Ratnayake J.N.K. Broadening and integrating public health supervisions in Regional Director of Health Services, Colombo. The College of Community Physicians of Sri Lanka – Global Public Health Summit 2025 and 30th Annual Academic Sessions, Colombo

Kottage K.N. Weerasooriya S.D. Jayalath D. Liyanapathirane T.V. Nandasena S, Wijethunge W.M.D.S. Udayanga V. Ranathunga P.A.H.K., Integrated planning of district level budget allocations to improve efficiency. The College of Community Physicians of Sri Lanka – Global Public Health Summit 2025 and 30th Annual Academic Sessions, Colombo

Weerasooriya S.D.1, Maduranga M.A.V.A.1, Liyanapathirane T.V.1, Muthahhara M.1, Nandasena S., Kottage K.N.1, Wijethunge W.M.D.S.1, Karunatilaka M.N., Achieving a triple benefit- a monthly health initiative at Regional Directorate of Health Services (RDHS) Colombo for wellness promotion, Sri Lanka. The College of Community Physicians of Sri Lanka – Global Public Health Summit 2025 and 30th Annual Academic Sessions, Colombo

Liyanage A.D.M.D.1, Jayalath D.2, Udayanga V.2, Nanayakkara P.2, Nandasena S.2, Perera G.A.C., Gunathilaka R.M.B.C.2, Malawalaarachchi L.D., Strengthening the supervision mechanism of Medical Officer of Health areas under Regional Director of Health Services Colombo, Sri Lanka. The College of Community Physicians of Sri Lanka – Global Public Health Summit 2025 and 30th Annual Academic Sessions, Colombo

Withana S.S., Mendis K, Wickramasinghe A.R., Nandasena S., Does Healthcare seeking Differ because of having Non-Communicable Disease? Data from a Health Diary Study. Gari August multidisciplinary symposium, 2020.

Evidence based health planning by Geographic information System: A case study for Healthy Life Style Centres, Udaya Rathnayake, Sumal Nandasena, Erandi Kularathna, Prasad Liyanage, Chandana Perera, Maduka Galagama, National Health Research Symposium 2019, Colombo

Fine Particulate and Black Carbon Exposure of Commuters Travelling in The Public Buses of City of Colombo, Sumal Nandasena, Udaya Rathnayake, R. J. Sinhabahu, Tharaka Piyal, National Health Research Symposium 2019, Colombo

Ecology of healthcare: symptom prevalence and healthcare seeking behavior in Gampaha district - Sri Lanka. Withana SS, Mendis K, Nandasena S, Wickremasinghe AR. 132nd medical congress of Sri Lanka Medical Association, 2019

Concentration of Particulate Matter Fractions and Kitchen Characteristics Among Solid Fuel and LPG Using Households in Sri Lanka; Nandasena Y.L.S., Wickremasinghe R., Kasthururathne A. Wimalasiri U. Tipre M. Larson R. Levitan E. Sathiakumar N. Seventh National Symposium on Air Quality Management in Sri Lanka 2018, August 16- 17, 2018

Cooking Fuel Used at home During Pregnancy and Birth Outcomes Among Females in Kalutara, Sri Lanka. Nandasena Y.L.S. Swarnamali H., Gamlath L., De Silva P., Wickremasinghe R., Sathiakumar N. Seventh National Symposium on Air Quality Management in Sri Lanka 2018, August 16- 17, 2018

Effects of Indoor Air Pollution on Children Under 5, Ranathunga N. Perera P, NandasenaY.L.S., Hettiarachchi, C., Abesiriwardena, N., Sinhabahu, R.J., Piyal, T., Seventh National Symposium on Air Quality Management in Sri Lanka 2018, August 16- 17, 2018

Passenger Exposure to Fine Particulate and Black Carbon in City of Colombo, NandasenaY.L.S., Sathiakumar N., Kasthururathne A. Wickremasinghe R., Seventh National Symposium on Air Quality Management in Sri Lanka 2018, August 16- 17, 2018

Attendance to non-communicable disease screening services and its associated factors among rural adults in Dimbulagala, Sri Lanka; Eroma Fernando, Sumal Nandasena; First World NCD Congress 2017, 4th  - 6th  November, 2017, Chandigarh, India

Prevalence of post mastectomy pain syndrome and quality of life of females followed up after mastectomy at National Cancer Institute, Vidura Jayasinghe, Sumal Nandasena; 22nd annual scientific sessions of the College of Community Physicians of Sri Lanka, 1st and 2nd of September 2017, Colombo, Sri Lanka.

Level of adherence of labels of carbonated beverages to Sri Lankan Food Regulations 2016; Charith Hettiarachchi, Mahendra Arnold, Sumal Nandasena; 22nd annual scientific sessions of the College of Community Physicians of Sri Lanka, 1st and 2nd of September 2017, Colombo, Sri Lanka.

Attendance to non-communicable disease screening services and its associated factors among adults aged 35 to 65-years in Dimbulagala Medical Officer of Health area, Sri Lanka, Eroma Fernando, Sumal Nandasena; 22nd annual scientific sessions of the College of Community Physicians of Sri Lanka, 1st and 2nd of September 2017, Colombo, Sri Lanka.

Indoor Air Pollution Effects on Physical Growth of Children under 5 years from Solid Fuel Combustion, Nayomi Ranathunga, Priyaantha Perera, Sumal Nandasena, Nalini Sathiakumar, Anuradhini Kasthuriratne, Rajitha Wikremasinghe, 19th International Conference on Air Pollution and Control 2017, International Scientific research and Experimental Development, 25-26 May, 2017, London, United Kingdom.

Air pollutant emissions patterns by cooking fuel type among Sri Lankan households, Sumal Nandasena, Udaya Wimalasiri, Anuradhani Kasturiratne, Rajitha Wickremasinghe, Meghan Tipre, Claudiu Lungu, Elizabeth Delzell, Nalini Sathiakumar, 28th Annual Conference; International Society for Environmental Epidemiology 2016 ISEE Conference, 1-4 September, 2016 in Rome, Italy.

Effects of exposure to indoor air pollution due to biomass fuel combustion on birth outcomes: a prospective birth cohort study Rajitha Wickremasingh, Sumal Nandasena, Priyantha Perera, Rasika Herath, Sanjiva Padumadasa, Arunasalem Pathmeswaran, Anuradhani Kasturiratne, Meghan Tipre, Claudiu Lungu, Elizabeth Delzell, Nalini Sathiakumar28th Annual Conference; International Society for Environmental Epidemiology 2016 ISEE Conference, 1-4 September, 2016 in Rome, Italy.

Black carbon and particle emissions in Sri Lankan kitchens, S. Nandasena, R. Wickremasinghe, N. Sathiakumar, 17thIUAPPA World Clean Air Congress and 9th CAA Better Air Quality Conference, 29th August to Sepetmber 2016, Busan, South Korea.

Household air pollution in urban and rural sectors, and in poorer and better off households in the Western Province in Sri Lanka, Sumal Nandasena, Upul Senerath, Indika Samarakoon, Kumari Vinodhani Navaratne, 17thIUAPPA World Clean Air Congress and 9th CAA Better Air Quality Conference, 29th August to Sepetmber 2016, Busan, South Korea.

Competency enhancement of field public health staff on legislative procedures of food sampling and litigation, S.A. Hewage, A. Pathirana, N. Gunathilaka, D. Udugama, C. Rodrigo, K. Hirimuthugoda, S. Nandasena, P. De Silva, L. Magodaratne, R. Ferdinando; 21st annual scientific sessions of the College of Community Physicians of Sri Lanka, 1st to 3rd of September 2016, Colombo.

The effectiveness and feasibility of a Short Message Service (SMS) based notification system to strengthen the communicable disease surveillance system in Medical Officer of Health area, Beruwala, H.W.S.R. Rambukwella, L.S.D. De Silva, P.P. Jayasinghe, H.N.A. Fonseka, T.J. Shivashankar, D.C.K. Herath, S.H.P. De Silva, S. Nandasena, L. Magodaratne, R. Ferdinando; 21st annual scientific sessions of the College of Community Physicians of Sri Lanka, 1st to 3rd of September 2016, Colombo.

Strengths, weaknesses, opportunities and threats to conduct research by government medical officers A. Padeniya, A.H.M.P. Anuruddha, D.R.D. Ratnayake, M.D.A. Krishani, E.G.D.N. Suraweera, A.P.de Silva, C. Epitakaduwa, D. Ranasinghe, N. Dharmakeerthi, S. Nandasena, 21st annual scientific sessions of the College of Community Physicians of Sri Lanka, 1st to 3rd of September 2016, Colombo.

Characteristics and sputum conversion of tuberculosis (TB) patients attend to chest clinic – Kalutara S. Nandasena, W.M.C.K. Senavirathna, C.S. Munasinghe, S.S.V. Gunawardane, B.P. Wetthasinghe, C. Wijesen, 21st annual scientific sessions of the College of Community Physicians of Sri Lanka, 1st to 3rd of September 2016, Colombo.

Knowledge, reported practices and their associated factors on disaster preparedness among residents of MOH area, Agalawatta A. Ambagahawita, S. Nandasena, S. Perera, 1st to 3rd of September 2016, Colombo.

Relationship between the indoor fine Particulate Matter and Black Carbon in Sri Lankan households: Findings from Kalutara Children’s Health Study, Sumal Nandasena, Ananda Rajitha Wickremasinghe, Lakshman Gamlath, Padmal de Silva, Shiromalee Ferdinandez, Emily B. Levitan, Elizabeth Delzell, Nalini Sathiakumar, ISEE-ISES AC 2016, Conference of International Society for Environmental Epidemiology and International Society of Exposure Sciences – Asia Chapter 2016., Sapparo, Japan. 

A comparative study of human exposure to household air pollution from commonly used cook stoves in Sri Lanka, R. Chartier, M. Phillips, P. Mosquin, M. Elledge, K. Bronstein, S. Nandasena, R.M. Amarasekara, V. Thornburg, J. Thornburg, C. Rodes, Sixth National Symposium on Air Resource Management in Sri Lanka. May 5-6, 2016, Colombo.

Does household cooking fuel type affect the low birth weight in Sri Lanka? S. Nandasena, W. M. C. K. Senavirathna, G.B.S. Perera, M. D. D. Janithri, C.A. Hettiarachchi, H.A. Kumari, K.R.G. Sucharitharathna, Sixth National Symposium on Air Resource Management in Sri Lanka. May 5-6, 2016, Colombo.

Health and social impact of indoor air pollution, S. Nandasena, 25th Anniversary International Scientific Conference, 6-8th April 2016, Faculty of Medicine, University of Kelaniya, Sri Lanka.

Dilka Peiris, Sumal Nandasena, Shivantha Mendis, Factors Associated with the Micronutrient Consuming Pattern of Mothers and Children in a Remote Area of Sri Lanka, European Journal of Nutrition and Food Safety, 5 (5): 695-696,2015, Article no. EJNFS. 2015.238  DOI: 10.9734/EJNFS/2015/21035

Indoor fine Particulate Matter and Black Carbon levels and associated factors in Sri Lankan households S. Nandasena, R. Wickremasinghe, N. Sathiakumar; 25th Annual Meeting, Exposures in an Evolving Environment. October 18 – 22, 2015 – Henderson, Nevada, USA.

Country Case – Sri Lanka: National Situation of Household air pollution and plans to develop and adapt the indoor air quality guidelines. S. Nandasena and T Sugathapala. Housholds Air Pollution – The Silent Killer. Integrated Conference of Better Air Quality 2014 and Intergovernmental 8th Regional Environmentally Sustainable Transport Forum in Asia19th -21st November 2014, Sri Lanka.

Black Carbon Emissions from Sri Lankan households, S. Nandasena, R. Wickremasinghe, N. Sathiakumar. Integrated Conference of Better Air Quality 2014 and Intergovernmental 8th Regional Environmentally Sustainable Transport Forum in Asia19th -21st November 2014, Sri Lanka.

Training Needs Assessment of Medical Officers of Health in Sri Lanka, Sumal Nandasena, P.de Silva, R. Ferdinando, S.Ramachandra,C.Senevirathne, Nusha Farook, L.N.Magodaratne,Chinthaka Balasooriya, J.N.Jayamuni, L.Gamlath,  S.deAlwis, AnnualAcademic Sessions of College of Community Physicians of Sri Lanka. 18th to 21st September 2014, Colombo Sri Lanka

Risk factors associated with low birth weight in Kalutara Medical Officer of Health Area, Sumal Nandasena, W.M.C.K.Senavirathna, M.D.D.Janithri,  R.D.S.Ranasinghe, K.W.M.D.Thamalee, U.P.Paranamana, Annual Academic Sessions of College of Community Physicians of Sri Lanka. 18th to 21st September 2014, Colombo Sri Lank

Real-Time PM Exposures from Cookstoves and Related Health Effects in Sri Lankan Women, Michael Phillips, Paul Mosquin, Ryan Chartier, Linda Brown, Vanessa Thornburg, Jonathan Thornburg, Sumal Nandasena, Myles Elledge, Charles Rodes, Katherine Bronstein, August 24 — 28, 2014, ISEE Annual Conference - Seattle, Washington, USA.

Exposure to PM2.5 through Cookstoves in Central Sri-Lanka, Paul Mosquin*, Michael Phillips, Ryan Chartier, Katherine Bronstein, Myles Elledge, Vanessa Thornburg, Thornburg Jonathan, Sumal Nandasena, Charles Rodes, August 24 — 28, 2014, ISEE Annual Conference - Seattle, Washington, USA

Prenatal Exposure to Solid Fuel Smoke and Infant Neurodevelopment. Nalini Sathiakumar,  Rajitha Wickremesinghe, Sumal Nandasena, Tenth Anniversary BRAIN Disorders in the Developing World Symposium, February 11th to 13th , 2014, National Institute of Health, Bethesda, Maryland, USA.

Overview of Environmental Exposure Estimation Strategies - A Snapshot of the UAB-South Asia Experience, Nalini Sathiakumar, Sumal Nandasena, Meghan Tipre, Tenth Anniversary BRAIN Disorders in the Developing World Symposium, February 11th to 13th , 2014, National Institute of Health, Bethesda, Maryland, USA.

Biomass fuel use pattern and acute respiratory infections in children in Sri Lanka: An analysis of Demographic and Health Survey Data, Kaththiriarachchi, L., Nandasena, Y.L.S., International Conference of Public Health Innovations, May 2nd to 4th, Sri Lanka.

Effects of ambient air pollution to indoor air quality and children’s respiratory health in Colombo; S Nandasena, A R Wickremasinghe, N Sathiakumar. BAQ2012: The Better Air Quality conference, 5 to 7 December 2012, Hong Kong.

A comparative Study of Biomass Cook: Stove Exposure in Sri Lanka; C. Rodes1, J. Thornburg, S. Nandasena, M. Phillips, M. Elledge, V. Thornburg, P. Mosquin, K. Bronstein, K. Everett. “ISES 2012: International Society of Exposure Science. October 28 to November1, 2012, Seattle, Washington, USA.

Knowledge, attitudes and practices of school teachers in Gampaha district on climate change Sumal Nandasena, Mindy Lipsitz, Sameera Meegasvila, A. Pathmeswaran, A.R. Wickremasinghe, NaliniSathiakumar. 17th Annual Academic Sessions of College of Community Physicians of Sri Lanka. 21st to 22ndSeptember 2012, Colombo Sri Lanka.

Geographical variations of goitre prevalence in Sri Lanka, Ranil Fernando, A. Pathmeswaran, Sumal Nandasena, AkhlaqueHaque.17th Annual Academic Sessions of College of Community Physicians of Sri Lanka. 21st to 22ndSeptember 2012, Colombo Sri Lanka.

Review of existing curriculum of Orientation on Management of Community Health for Medical Officers of Health in comparison to hypothesized universe of content, L.T. Gamlath, Padmal de Silva, RuwanFerdinando, Chandima Abeysinghe, Sumal Nandasena. 17th Annual Academic Sessions of College of Community Physicians of Sri Lanka. 21st to 22ndSeptember 2012, Colombo Sri Lanka.

Experience of a re-awaking giant- “NIHS – The Sri Lankan Pride in Global Health”, L.T. Gamlath, U.K.D. Piyaseeli, RuwanFerdinando, Padmal de Silva, Sumal Nandasena. 17th Annual Academic Sessions of College of Community Physicians of Sri Lanka. 21st to 22ndSeptember 2012, Colombo Sri Lanka.

Review of socio demographical and epidemiological transition to identify the current public health challenges and training needs in Sri Lanka, Padmal de Silva, Sumal Nandasena, L.T. Gamlath, UKDPiyaseeli,  L.C.  Rajapaksa. 17th Annual Academic Sessions of College of Community Physicians of Sri Lanka. 21st to 22ndSeptember 2012, Colombo Sri Lanka.

Respiratory health of children from two settings: yearlong follow-up of three panels. S. Nandasena, Padmal de Silva, A.R. Wickremasinghe, N. Sathiakumar. “Air That We Breath”, 5th National Symposium, Ministry of Environment, Sri Lanka, 11th May 2012, Colombo Sri Lanka.

Levels and determinants of indoor air quality in Sri Lankan households. S. Nandasena, A R  Wickremasinghe,  N Sathiakumar. “ISES 2011: Advancing Exposure Science for Environmental Health: International Society of Exposure Science.23rd to 27th, October 2011, Balitimore, USA.

M.F. Elledge, M.J. Phillips, V.E. Thornburg, & S. Nandasena, (2011, June). Profile of Biomass Stove Use in Sri Lanka and the Associated Environmental Health Risks. Presented at Indoor Air 2011, Austin, Texas, USA.

Urban air pollution and mitigation options in Sri Lanka, G.B.S. Perera, R. Emmanuel, S. Nandasena.BAQ (Better Air Quality) Conference 2010, 9th – 11th November, Singapore.

Ambient air pollutant exposure and respiratory health of children in Sri Lanka. S. Nandasena,A.R. Wickremasinghe,N. Sathiakumar.10th South Asia Regional Scientific Meeting of the International Epidemiological Association. 23rd -26th May 2010, Colombo, Sri Lanka.

Use of GIS in mapping and measurement of ambient air pollution levels in Sri Lanka. S. Nandasena,A.R. Wickremasinghe,N. Sathiakumar. 10th South Asia Regional Scientific Meeting of the International Epidemiological Association. 23rd -26th May 2010.Colombo, Sri Lanka.

Biomass fuel use trends and acute respiratory infections in children in Sri Lanka: An analysis of demographic and health survey data. S. Nandasena, I.Bandara, A.R. Wickremasinghe,N. Sathiakumar. “Air That We Breath”, 4th National Symposium, Ministry of Environment, Sri Lanka, 18th March 2010, Colombo Sri Lanka.

Indoor and outdoor air quality variability and associated respiratory health of children: Preliminary findings of an ongoing longitudinal study. S.Nandasena, A.R. Wickremasinghe, N. Sathiakumar. “Air That We Breath”, 4th National Symposium, Ministry of Environment, Sri Lanka, 18th March 2010, Colombo Sri Lanka.

Exposure to Secondhand Smoke in Public Places in Korea, China, Japan and Sri Lanka. J.Lee, K.Lee, X.Guo, H.Yamato, S.Nandasena, N.Sathiakumar. ISES 2009 Annual Conference: Transforming Exposure Science In The 21stCentury. 1 to 5th November, 2009, Minneapolis, MN, USA.

Socio- demographic characteristics and principal cooking fuel type in Sri Lanka: Comparison of data from two Demographic and Health Survey data, Y.L.S. Nandasena, A.R. Wickremasinghe, N. Sathiakumar. ISES 2009 Annual Conference: Transforming Exposure Science In The 21stCenturay. 1 to 5th November, 2009, Minneapolis, MN, USA.

Fine particle air pollution due to secondhand smoke in selected public places in Colombo, Y.L.S. Nandasena,A.R. Wickremasinghe, K. Lee, N. Sathiakumar. ISES 2009 Annual Conference: Transforming Exposure Science in The 21stCentury. 1 to 5th November, 2009, Minneapolis, MN, USA.

Fine particle air pollution due to secondhand smoke in selected public places in Colombo, Y.L.S. Nandasena,A.R. Wickremasinghe, K. Lee, N. Sathiakumar. 14th Annual Academic Sessions of College of Community Physicians of Sri Lanka. 9th -12th September 2009, Colombo Sri Lanka.

Socio- demographic characteristics and principal cooking fuel type in Sri Lanka: Comparison of data from two Demographic and Health Survey data, Y.L.S. Nandasena,A.R. Wickremasinghe,N. Sathiakumar. 14th Annual Academic Sessions of College of Community Physicians of Sri Lanka. 9th -12th September 2009, Colombo Sri Lanka.

Health Effects of Air Pollution in Sri Lanka: A Review of Available Evidence, Y.L.S. Nandasena, A. Weerasinghe,A.R. Wickremasinghe. 122nd Anniversary Academic Sessions, Sri Lanka Medical Association, 18th to22nd March 2009, Colombo Sri Lanka.

Perception of editorial staff and coverage of reproductive health related newspapers articles and adolescents’ expectations, B. Kumarendran, Y.L.S. Nandasena, H.T.C.S. Abeysena, 122nd Anniversary Academic Sessions, Sri Lanka Medical Association, 18th to 22nd March 2009, Colombo Sri Lanka.

Mapping dengue cases from the Western Province of Sri Lanka that occurred during the outbreak in 2004. M.J. Pinidiyapathirage, Y.L.S. Nandasena, M.R.N. Abeysinghe, A.R. Wickremasinghe. Forum on Getting Research into Practices (GRIPS), Ministry of Healthcare and Nutrition and National Health Research Council. 18th December 2008.

Quantification of health effects of air pollutants and identifying the interventions to reduce air pollution – A model for urban settings; G.B.S. Perera, Y.L.S. Nandasena, R. Emmanuel, National Annual Scientific Sessions 2008 on Ecological Medicine, 25th October 2008.

Adolescents’ expectations on reproductive health information published by newspapers; B Kumarendran, YLS Nandasena, HTCS Abeysena; The 13th Annual Academic Sessions of the College of Community Physicians of Sri Lanka, 18th September 2008.

Coverage of reproductive health related articles published by selected Sinhalese newspapers and the perceptions of journalists and editorial staff; B Kumarendran, YLS Nandasena, HTCS Abeysena; The 13th Annual Academic Sessions of the College of Community Physicians of Sri Lanka, 18th September 2008.

Case series of patients underwent skin sparing mastectomy “SSM” with level II axillary clearance and immediate reconstruction with a myocutaneous flap; AHMPAnuruddha, BNPJawardana, YLS Nandasena, KASJBalawardana; Annual Scientific Sessions – 2008, College of Surgeons of Sri Lanka, 28th August 2008.

Infant Feeding Practices at Nine Months of Age; Y.L.S. Nandasena, C. De Silva; 121 Anniversary Academic Sessions, Sri Lanka Medical Association, 20th March 2008.

The Nutritional Status at Nine Months of Age: Are We below the WHO New Standards? Y.L.S. Nandasena, C. De Silva; 121 Anniversary Academic Sessions, Sri Lanka Medical Association, 20th March 2008.

Demand of adolescent reproductive health information: Extent of fulfilling by the newspapers; B Kumarendran, Y.L.S. Nandasena, HTCS Abeysena; Research Seminar on Adolescent Reproductive and Sexual Health; 29th November 2007.

Exposure to aerosol pollution and reported respiratory symptoms among school children in segments of urban and rural settings in Sri Lanka; Perera, G.B.S., Emmanuel, R., Nandasena, Y.L.S., Premasiri, H.D.S.: 3rd National Symposium, Ministry of Environment, Sri Lanka, 28th September 2007.

Street level air pollution and the effects of land use / urban planning variables: Initial findings from the Colombo Metropolitan Region; Perera, G.B.S., Emmanuel, R., Nandasena, Y.L.S.: 3rd National Symposium, Ministry of Environment, Sri Lanka, 28th September 2007.

Perera, G.B.S., Emmanuel, R., Nandasena,Y.L.S., Premasiri, H.D.S., Exposure to aerosol pollution and reported respiratory symptoms among city dwellers in Sri Lanka, 2nd National Symposium, Ministry of Environment, Sri Lanka, March 2006.

A Descriptive Cross Sectional Study on Mothers Self-medicating Children. Clinical and Experimental Pharmacology and Physiology, 2004; 31 (s1) A63SHKariyawasam, DNNanayakkara, MACPMohottiarachchi, YLS Nandasena (abstract –poster presentation).

Identifying the offending species in snakebite: a clinical score for use in community based epidemiological surveys; A. Pathmeswaran, M.M.D. Fonseka, A.Kasturiratne, S. Nandasena, G.K.Gunatilaka, L.Gunaratne, A.P.deSilva, D.G. Lalloo, H.J. de Silva; 117th Anniversary Academic Sessions, Sri Lanka Medical Association, 26 March 2004.

Beliefs and knowledge regarding snakebite in rural Sri Lanka: a qualitative survey; L. S. Makita, S. Nandasena, M.R.A.Costa, A.Kasturiratne, A.Pathmeswaran, D.G. Lalloo, H.J. de Silva; 116th  Anniversary Academic Sessions, Sri Lanka Medical Association, 27th  March 2003.

Analysis of Sri Lanka’s Policy on Healthcare Delivery for Universal Health Coverage. Office of the Director General of Health Services, Ministry of Health and Mass Media, Sri Lanka. 2025 ISBN – 978-624-6511-40-1

Indoor Environmental Quality and Health Risk toward Healthier Environment for All, ISBN 978-981-329-182-9, Editors: Kishi, Reiko, Norbäck, Dan, Araki, Atsuko (Eds.) Book Chapter 12: Combustion and Cookstoves - S Nandasena, A R Wickremasinghe,  N Sathiakumar, Springer Singapore, December, 2019

Index of research studies on tuberculosis in Sri Lanka, ISBN 978-624-95171-0-3, Sumudu Avanthi Hewage, Sumal Nandasena, Mizaya Carder, M.A.C.M. Refai, R.M.D.Madegedara; National Programme for Tuberculosis Control and Chest Diseases in Sri Lanka, March, 2019

Training Programme on Research Methodology: User Guide of Distance Education Portal; Sumal Nandasena, ISBN 978-955-42678-2-4. First edition – December, 2017, Colombo.

Essentials of Geographic Information System and Mapping: A practical guide for Health Professionals; Sumal Nandasena and N K Gunawardena, ISBN 978-955-42678-0-0. First edition – October, 2015, Colombo.

Empowering Communities to plan and implement a Health Festival: A practical manual based on the experiences of conducting the “Health Festival 2015” at Kalutara Medical Officer of Health area to empower communitiesfor lifestyle change, ISBN 978-955-9019-299, First edition – September, 2015, Colombo.

Workplace Based Research,  Anuruddha Padeniya, Sunil de Alwis, Sumal Nandasena, ISBN 978 -955-42012-1-7, Society of Health Research and Innovations (SHRI), Governmnet Medical Officers Association, 2015.

NRC Merit Award for Scientific Publications – 2014: Certificate of Recognition for Scientific Research, Awarded by the National Research Council.

NRC Merit Award for Scientific Publications – 2013: Certificate of Recognition for Scientific Research, Awarded by the National Research Council.

President’s Award for Research 2012: Certificate of Recognition awarded for Scientific Research evaluated by peers and published in an International Scientific Journals cited in the Science Citation Index. (Awarded by President of Sri Lanka, His Excellency Mahinda Rajapaksha), Colombo.

President’s Award for Research 2011: Certificate of Recognition awarded for Scientific Research evaluated by peers and published in an International Scientific Journals cited in the Science Citation Index. (Awarded by President of Sri Lanka, His Excellency Mahinda Rajapaksha), Colombo.

Ten Outstanding Young Persons Award – Medical Research and Innovations 2013: Awarded by the Junior Chamber International (JCI) Sri Lanka. Awarded on 25^th on September 2013 at Colombo, Sri Lanka.

Sir Frank Gunasekera Prize for the best paper in Community Medicine & Tuberculosis: 125th Anniversary International Medical Congress 2012 of Sri Lanka Medical Association.

President’s Award for Research 2010: Certificate of Recognition awarded for Scientific Research evaluated by peers and published in an International Scientific Journals cited in the Science Citation Index. (Awarded by President of Sri Lanka, His Excellency MahindaRajapaksha), Colombo.

Doctoral student awards 2010: In recognition of outstanding research conducted by a student in the area of Environmental Epidemiology. Awarded at the joint conference of International Society of Exposure Science (ISES) and International Society for Environmental Epidemiology (ISEE), South Korea.

Prof. Earl de Fonseka prize for the best oral presentation on public health. 14th Annual Academic Sessions of College of Community Physicians of Sri Lanka. 9th -12th September 2009, Colombo.

Best poster award; The 13th Annual Academic Sessions of the College of Community Physicians of Sri Lanka, 18th September 2008, Colombo.

Kumaradasa Rajasuriya award for best paper in Tropical Medicine at the Annual Scientific Sessions of the Sri Lanka Medical Association held in Colombo, March 2004, Colombo.

Nandasena, S., Kolonne, E., Dissanayake, N., Cader, M., & Gamage, S. (2026, February 15–17). Discrepancies in tuberculosis death reporting in Sri Lanka [Abstract]. Annual Academic Sessions 2026, Sri Lanka College of Pulmonologists, Colombo, Sri Lanka.

Nandasena, S., Withana, K., Jayawardhana, R., Perera, N., & Cader, M. (2026, February 15–17). Mapping tuberculosis research in Sri Lanka: A scoping review of evidence, trends, and gaps [Abstract]. Annual Academic Sessions 2026, Sri Lanka College of Pulmonologists, Colombo, Sri Lanka.

Liyanage A.D.M.D., Dharmawardhana M.P., Gunawardana D.S.K.D., Ananda P.H.R.V., Nandasena S., Karunatilaka M.N., Perera G.A.C., Ratnayake J.N.K. Broadening and integrating public health supervisions in Regional Director of Health Services, Colombo. The College of Community Physicians of Sri Lanka – Global Public Health Summit 2025 and 30th Annual Academic Sessions, Colombo

Kottage K.N. Weerasooriya S.D. Jayalath D. Liyanapathirane T.V. Nandasena S, Wijethunge W.M.D.S. Udayanga V. Ranathunga P.A.H.K., Integrated planning of district level budget allocations to improve efficiency. The College of Community Physicians of Sri Lanka – Global Public Health Summit 2025 and 30th Annual Academic Sessions, Colombo

Weerasooriya S.D.1, Maduranga M.A.V.A.1, Liyanapathirane T.V.1, Muthahhara M.1, Nandasena S., Kottage K.N.1, Wijethunge W.M.D.S.1, Karunatilaka M.N., Achieving a triple benefit- a monthly health initiative at Regional Directorate of Health Services (RDHS) Colombo for wellness promotion, Sri Lanka. The College of Community Physicians of Sri Lanka – Global Public Health Summit 2025 and 30th Annual Academic Sessions, Colombo

Liyanage A.D.M.D.1, Jayalath D.2, Udayanga V.2, Nanayakkara P.2, Nandasena S.2, Perera G.A.C., Gunathilaka R.M.B.C.2, Malawalaarachchi L.D., Strengthening the supervision mechanism of Medical Officer of Health areas under Regional Director of Health Services Colombo, Sri Lanka. The College of Community Physicians of Sri Lanka – Global Public Health Summit 2025 and 30th Annual Academic Sessions, Colombo

Withana S.S., Mendis K, Wickramasinghe A.R., Nandasena S., Does Healthcare seeking Differ because of having Non-Communicable Disease? Data from a Health Diary Study. Gari August multidisciplinary symposium, 2020.

Evidence based health planning by Geographic information System: A case study for Healthy Life Style Centres, Udaya Rathnayake, Sumal Nandasena, Erandi Kularathna, Prasad Liyanage, Chandana Perera, Maduka Galagama, National Health Research Symposium 2019, Colombo

Fine Particulate and Black Carbon Exposure of Commuters Travelling in The Public Buses of City of Colombo, Sumal Nandasena, Udaya Rathnayake, R. J. Sinhabahu, Tharaka Piyal, National Health Research Symposium 2019, Colombo

Ecology of healthcare: symptom prevalence and healthcare seeking behavior in Gampaha district - Sri Lanka. Withana SS, Mendis K, Nandasena S, Wickremasinghe AR. 132^nd medical congress of Sri Lanka Medical Association, 2019

Concentration of Particulate Matter Fractions and Kitchen Characteristics Among Solid Fuel and LPG Using Households in Sri Lanka; Nandasena Y.L.S., Wickremasinghe R., Kasthururathne A. Wimalasiri U. Tipre M. Larson R. Levitan E. Sathiakumar N. Seventh National Symposium on Air Quality Management in Sri Lanka 2018, August 16- 17, 2018

Cooking Fuel Used at home During Pregnancy and Birth Outcomes Among Females in Kalutara, Sri Lanka. Nandasena Y.L.S. Swarnamali H., Gamlath L., De Silva P., Wickremasinghe R., Sathiakumar N. Seventh National Symposium on Air Quality Management in Sri Lanka 2018, August 16- 17, 2018

Effects of Indoor Air Pollution on Children Under 5, Ranathunga N. Perera P, NandasenaY.L.S., Hettiarachchi, C., Abesiriwardena, N., Sinhabahu, R.J., Piyal, T., Seventh National Symposium on Air Quality Management in Sri Lanka 2018, August 16- 17, 2018

Passenger Exposure to Fine Particulate and Black Carbon in City of Colombo, NandasenaY.L.S., Sathiakumar N., Kasthururathne A. Wickremasinghe R., Seventh National Symposium on Air Quality Management in Sri Lanka 2018, August 16- 17, 2018

Attendance to non-communicable disease screening services and its associated factors among rural adults in Dimbulagala, Sri Lanka; Eroma Fernando, Sumal Nandasena; First World NCD Congress 2017, 4^th  - 6^th  November, 2017, Chandigarh, India

Prevalence of post mastectomy pain syndrome and quality of life of females followed up after mastectomy at National Cancer Institute, Vidura Jayasinghe, Sumal Nandasena; 22^nd annual scientific sessions of the College of Community Physicians of Sri Lanka, 1^st and 2^nd of September 2017, Colombo, Sri Lanka.

Level of adherence of labels of carbonated beverages to Sri Lankan Food Regulations 2016; Charith Hettiarachchi, Mahendra Arnold, Sumal Nandasena; 22^nd annual scientific sessions of the College of Community Physicians of Sri Lanka, 1^st and 2^nd of September 2017, Colombo, Sri Lanka.

Attendance to non-communicable disease screening services and its associated factors among adults aged 35 to 65-years in Dimbulagala Medical Officer of Health area, Sri Lanka, Eroma Fernando, Sumal Nandasena; 22^nd annual scientific sessions of the College of Community Physicians of Sri Lanka, 1^st and 2^nd of September 2017, Colombo, Sri Lanka.

Indoor Air Pollution Effects on Physical Growth of Children under 5 years from Solid Fuel Combustion, Nayomi Ranathunga, Priyaantha Perera, Sumal Nandasena, Nalini Sathiakumar, Anuradhini Kasthuriratne, Rajitha Wikremasinghe, 19^th International Conference on Air Pollution and Control 2017, International Scientific research and Experimental Development, 25-26 May, 2017, London, United Kingdom.

Air pollutant emissions patterns by cooking fuel type among Sri Lankan households, Sumal Nandasena, Udaya Wimalasiri, Anuradhani Kasturiratne, Rajitha Wickremasinghe, Meghan Tipre, Claudiu Lungu, Elizabeth Delzell, Nalini Sathiakumar, 28^th Annual Conference; International Society for Environmental Epidemiology 2016 ISEE Conference, 1-4 September, 2016 in Rome, Italy.

Effects of exposure to indoor air pollution due to biomass fuel combustion on birth outcomes: a prospective birth cohort study Rajitha Wickremasingh, Sumal Nandasena, Priyantha Perera, Rasika Herath, Sanjiva Padumadasa, Arunasalem Pathmeswaran, Anuradhani Kasturiratne, Meghan Tipre, Claudiu Lungu, Elizabeth Delzell, Nalini Sathiakumar28^th Annual Conference; International Society for Environmental Epidemiology 2016 ISEE Conference, 1-4 September, 2016 in Rome, Italy.

Black carbon and particle emissions in Sri Lankan kitchens, S. Nandasena, R. Wickremasinghe, N. Sathiakumar, 17^thIUAPPA World Clean Air Congress and 9th CAA Better Air Quality Conference, 29^th August to Sepetmber 2016, Busan, South Korea.

Household air pollution in urban and rural sectors, and in poorer and better off households in the Western Province in Sri Lanka, Sumal Nandasena, Upul Senerath, Indika Samarakoon, Kumari Vinodhani Navaratne, 17^thIUAPPA World Clean Air Congress and 9th CAA Better Air Quality Conference, 29^th August to Sepetmber 2016, Busan, South Korea.

Competency enhancement of field public health staff on legislative procedures of food sampling and litigation, S.A. Hewage, A. Pathirana, N. Gunathilaka, D. Udugama, C. Rodrigo, K. Hirimuthugoda, S. Nandasena, P. De Silva, L. Magodaratne, R. Ferdinando; 21^st annual scientific sessions of the College of Community Physicians of Sri Lanka, 1^st to 3^rd of September 2016, Colombo.

The effectiveness and feasibility of a Short Message Service (SMS) based notification system to strengthen the communicable disease surveillance system in Medical Officer of Health area, Beruwala, H.W.S.R. Rambukwella, L.S.D. De Silva, P.P. Jayasinghe, H.N.A. Fonseka, T.J. Shivashankar, D.C.K. Herath, S.H.P. De Silva, S. Nandasena, L. Magodaratne, R. Ferdinando; 21^st annual scientific sessions of the College of Community Physicians of Sri Lanka, 1^st to 3^rd of September 2016, Colombo.

Strengths, weaknesses, opportunities and threats to conduct research by government medical officers A. Padeniya, A.H.M.P. Anuruddha, D.R.D. Ratnayake, M.D.A. Krishani, E.G.D.N. Suraweera, A.P.de Silva, C. Epitakaduwa, D. Ranasinghe, N. Dharmakeerthi, S. Nandasena, 21^st annual scientific sessions of the College of Community Physicians of Sri Lanka, 1^st to 3^rd of September 2016, Colombo.

Characteristics and sputum conversion of tuberculosis (TB) patients attend to chest clinic – Kalutara S. Nandasena, W.M.C.K. Senavirathna, C.S. Munasinghe, S.S.V. Gunawardane, B.P. Wetthasinghe, C. Wijesen, 21^st annual scientific sessions of the College of Community Physicians of Sri Lanka, 1^st to 3^rd of September 2016, Colombo.

Knowledge, reported practices and their associated factors on disaster preparedness among residents of MOH area, Agalawatta A. Ambagahawita, S. Nandasena, S. Perera, 1^st to 3^rd of September 2016, Colombo.

Relationship between the indoor fine Particulate Matter and Black Carbon in Sri Lankan households: Findings from Kalutara Children’s Health Study, Sumal Nandasena, Ananda Rajitha Wickremasinghe, Lakshman Gamlath, Padmal de Silva, Shiromalee Ferdinandez, Emily B. Levitan, Elizabeth Delzell, Nalini Sathiakumar, ISEE-ISES AC 2016, Conference of International Society for Environmental Epidemiology and International Society of Exposure Sciences – Asia Chapter 2016., Sapparo, Japan. 

A comparative study of human exposure to household air pollution from commonly used cook stoves in Sri Lanka, R. Chartier, M. Phillips, P. Mosquin, M. Elledge, K. Bronstein, S. Nandasena, R.M. Amarasekara, V. Thornburg, J. Thornburg, C. Rodes, Sixth National Symposium on Air Resource Management in Sri Lanka. May 5-6, 2016, Colombo.

Does household cooking fuel type affect the low birth weight in Sri Lanka? S. Nandasena, W. M. C. K. Senavirathna, G.B.S. Perera, M. D. D. Janithri, C.A. Hettiarachchi, H.A. Kumari, K.R.G. Sucharitharathna, Sixth National Symposium on Air Resource Management in Sri Lanka. May 5-6, 2016, Colombo.

Health and social impact of indoor air pollution, S. Nandasena, 25^th Anniversary International Scientific Conference, 6-8^th April 2016, Faculty of Medicine, University of Kelaniya, Sri Lanka.

Dilka Peiris, Sumal Nandasena, Shivantha Mendis, Factors Associated with the Micronutrient Consuming Pattern of Mothers and Children in a Remote Area of Sri Lanka, European Journal of Nutrition and Food Safety, 5 (5): 695-696,2015, Article no. EJNFS. 2015.238  DOI: 10.9734/EJNFS/2015/21035

Indoor fine Particulate Matter and Black Carbon levels and associated factors in Sri Lankan households S. Nandasena, R. Wickremasinghe, N. Sathiakumar; 25^th Annual Meeting, Exposures in an Evolving Environment. October 18 – 22, 2015 – Henderson, Nevada, USA.

Country Case – Sri Lanka: National Situation of Household air pollution and plans to develop and adapt the indoor air quality guidelines. S. Nandasena and T Sugathapala. Housholds Air Pollution – The Silent Killer. Integrated Conference of Better Air Quality 2014 and Intergovernmental 8^th Regional Environmentally Sustainable Transport Forum in Asia19th -21^st November 2014, Sri Lanka.

Black Carbon Emissions from Sri Lankan households, S. Nandasena, R. Wickremasinghe, N. Sathiakumar. Integrated Conference of Better Air Quality 2014 and Intergovernmental 8^th Regional Environmentally Sustainable Transport Forum in Asia19th -21^st November 2014, Sri Lanka.

Training Needs Assessment of Medical Officers of Health in Sri Lanka, Sumal Nandasena, P.de Silva, R. Ferdinando, S.Ramachandra,C.Senevirathne, Nusha Farook, L.N.Magodaratne,Chinthaka Balasooriya, J.N.Jayamuni, L.Gamlath^,  S.deAlwis, AnnualAcademic Sessions of College of Community Physicians of Sri Lanka. 18^th to 21^st September 2014, Colombo Sri Lanka

Risk factors associated with low birth weight in Kalutara Medical Officer of Health Area, Sumal Nandasena, W.M.C.K.Senavirathna, M.D.D.Janithri,  R.D.S.Ranasinghe, K.W.M.D.Thamalee, U.P.Paranamana, Annual Academic Sessions of College of Community Physicians of Sri Lanka. 18^th to 21^st September 2014, Colombo Sri Lank

Real-Time PM Exposures from Cookstoves and Related Health Effects in Sri Lankan Women, Michael Phillips, Paul Mosquin, Ryan Chartier, Linda Brown, Vanessa Thornburg, Jonathan Thornburg, Sumal Nandasena, Myles Elledge, Charles Rodes, Katherine Bronstein, August 24 — 28, 2014, ISEE Annual Conference - Seattle, Washington, USA.

Exposure to PM2.5 through Cookstoves in Central Sri-Lanka, Paul Mosquin*, Michael Phillips, Ryan Chartier, Katherine Bronstein, Myles Elledge, Vanessa Thornburg, Thornburg Jonathan, Sumal Nandasena, Charles Rodes, August 24 — 28, 2014, ISEE Annual Conference - Seattle, Washington, USA

Prenatal Exposure to Solid Fuel Smoke and Infant Neurodevelopment. Nalini Sathiakumar,  Rajitha Wickremesinghe, Sumal Nandasena, Tenth Anniversary BRAIN Disorders in the Developing World Symposium, February 11^th to 13^th , 2014, National Institute of Health, Bethesda, Maryland, USA.

Overview of Environmental Exposure Estimation Strategies - A Snapshot of the UAB-South Asia Experience, Nalini Sathiakumar, Sumal Nandasena, Meghan Tipre, Tenth Anniversary BRAIN Disorders in the Developing World Symposium, February 11th to 13th , 2014, National Institute of Health, Bethesda, Maryland, USA.

Biomass fuel use pattern and acute respiratory infections in children in Sri Lanka: An analysis of Demographic and Health Survey Data, Kaththiriarachchi, L., Nandasena, Y.L.S., International Conference of Public Health Innovations, May 2^nd to 4^th, Sri Lanka.

Effects of ambient air pollution to indoor air quality and children’s respiratory health in Colombo; S Nandasena, A R Wickremasinghe, N Sathiakumar. BAQ2012: The Better Air Quality conference, 5 to 7 December 2012, Hong Kong.

A comparative Study of Biomass Cook: Stove Exposure in Sri Lanka; C. Rodes1, J. Thornburg, S. Nandasena, M. Phillips, M. Elledge, V. Thornburg, P. Mosquin, K. Bronstein, K. Everett. “ISES 2012: International Society of Exposure Science. October 28 to November1, 2012, Seattle, Washington, USA.

Knowledge, attitudes and practices of school teachers in Gampaha district on climate change Sumal Nandasena, Mindy Lipsitz, Sameera Meegasvila, A. Pathmeswaran, A.R. Wickremasinghe, NaliniSathiakumar. 17^th Annual Academic Sessions of College of Community Physicians of Sri Lanka. 21^st to 22^ndSeptember 2012, Colombo Sri Lanka.

Geographical variations of goitre prevalence in Sri Lanka, Ranil Fernando, A. Pathmeswaran, Sumal Nandasena, AkhlaqueHaque.17^th Annual Academic Sessions of College of Community Physicians of Sri Lanka. 21^st to 22^ndSeptember 2012, Colombo Sri Lanka.

Review of existing curriculum of Orientation on Management of Community Health for Medical Officers of Health in comparison to hypothesized universe of content, L.T. Gamlath, Padmal de Silva, RuwanFerdinando, Chandima Abeysinghe, Sumal Nandasena. 17^th Annual Academic Sessions of College of Community Physicians of Sri Lanka. 21^st to 22^ndSeptember 2012, Colombo Sri Lanka.

Experience of a re-awaking giant- “NIHS – The Sri Lankan Pride in Global Health”, L.T. Gamlath, U.K.D. Piyaseeli, RuwanFerdinando, Padmal de Silva, Sumal Nandasena. 17^th Annual Academic Sessions of College of Community Physicians of Sri Lanka. 21^st to 22^ndSeptember 2012, Colombo Sri Lanka.

Review of socio demographical and epidemiological transition to identify the current public health challenges and training needs in Sri Lanka, Padmal de Silva, Sumal Nandasena, L.T. Gamlath, UKDPiyaseeli,  L.C.  Rajapaksa. 17^th Annual Academic Sessions of College of Community Physicians of Sri Lanka. 21^st to 22^ndSeptember 2012, Colombo Sri Lanka.

Respiratory health of children from two settings: yearlong follow-up of three panels. S. Nandasena, Padmal de Silva, A.R. Wickremasinghe, N. Sathiakumar. “Air That We Breath”, 5th National Symposium, Ministry of Environment, Sri Lanka, 11th May 2012, Colombo Sri Lanka.

Levels and determinants of indoor air quality in Sri Lankan households. S. Nandasena, A R  Wickremasinghe,  N Sathiakumar. “ISES 2011: Advancing Exposure Science for Environmental Health: International Society of Exposure Science.23^rd to 27^th, October 2011, Balitimore, USA.

M.F. Elledge, M.J. Phillips, V.E. Thornburg, & S. Nandasena, (2011, June). Profile of Biomass Stove Use in Sri Lanka and the Associated Environmental Health Risks. Presented at Indoor Air 2011, Austin, Texas, USA.

Urban air pollution and mitigation options in Sri Lanka, G.B.S. Perera, R. Emmanuel, S. Nandasena.BAQ (Better Air Quality) Conference 2010, 9^th – 11^th November, Singapore.

Ambient air pollutant exposure and respiratory health of children in Sri Lanka. S. Nandasena,A.R. Wickremasinghe,N. Sathiakumar.10^th South Asia Regional Scientific Meeting of the International Epidemiological Association. 23^rd -26^th May 2010, Colombo, Sri Lanka.

Use of GIS in mapping and measurement of ambient air pollution levels in Sri Lanka. S. Nandasena,A.R. Wickremasinghe,N. Sathiakumar. 10^th South Asia Regional Scientific Meeting of the International Epidemiological Association. 23^rd -26^th May 2010.Colombo, Sri Lanka.

Biomass fuel use trends and acute respiratory infections in children in Sri Lanka: An analysis of demographic and health survey data. S. Nandasena, I.Bandara, A.R. Wickremasinghe,N. Sathiakumar. “Air That We Breath”, 4th National Symposium, Ministry of Environment, Sri Lanka, 18^th March 2010, Colombo Sri Lanka.

Indoor and outdoor air quality variability and associated respiratory health of children: Preliminary findings of an ongoing longitudinal study. S.Nandasena, A.R. Wickremasinghe, N. Sathiakumar. “Air That We Breath”, 4th National Symposium, Ministry of Environment, Sri Lanka, 18^th March 2010, Colombo Sri Lanka.

Exposure to Secondhand Smoke in Public Places in Korea, China, Japan and Sri Lanka. J.Lee, K.Lee, X.Guo, H.Yamato, S.Nandasena, N.Sathiakumar. ISES 2009 Annual Conference: Transforming Exposure Science In The 21^stCentury. 1 to 5^th November, 2009, Minneapolis, MN, USA.

Socio- demographic characteristics and principal cooking fuel type in Sri Lanka: Comparison of data from two Demographic and Health Survey data, Y.L.S. Nandasena, A.R. Wickremasinghe, N. Sathiakumar. ISES 2009 Annual Conference: Transforming Exposure Science In The 21^stCenturay. 1 to 5^th November, 2009, Minneapolis, MN, USA.

Fine particle air pollution due to secondhand smoke in selected public places in Colombo, Y.L.S. Nandasena,A.R. Wickremasinghe, K. Lee, N. Sathiakumar. ISES 2009 Annual Conference: Transforming Exposure Science in The 21^stCentury. 1 to 5^th November, 2009, Minneapolis, MN, USA.

Fine particle air pollution due to secondhand smoke in selected public places in Colombo, Y.L.S. Nandasena,A.R. Wickremasinghe, K. Lee, N. Sathiakumar. 14^th Annual Academic Sessions of College of Community Physicians of Sri Lanka. 9^th -12^th September 2009, Colombo Sri Lanka.

Socio- demographic characteristics and principal cooking fuel type in Sri Lanka: Comparison of data from two Demographic and Health Survey data, Y.L.S. Nandasena,A.R. Wickremasinghe,N. Sathiakumar. 14^th Annual Academic Sessions of College of Community Physicians of Sri Lanka. 9^th -12^th September 2009, Colombo Sri Lanka.

Health Effects of Air Pollution in Sri Lanka: A Review of Available Evidence, Y.L.S. Nandasena, A. Weerasinghe,A.R. Wickremasinghe. 122^nd Anniversary Academic Sessions, Sri Lanka Medical Association, 18^th to22^nd March 2009, Colombo Sri Lanka.

Perception of editorial staff and coverage of reproductive health related newspapers articles and adolescents’ expectations, B. Kumarendran, Y.L.S. Nandasena, H.T.C.S. Abeysena, 122^nd Anniversary Academic Sessions, Sri Lanka Medical Association, 18^th to 22^nd March 2009, Colombo Sri Lanka.

Mapping dengue cases from the Western Province of Sri Lanka that occurred during the outbreak in 2004. M.J. Pinidiyapathirage, Y.L.S. Nandasena, M.R.N. Abeysinghe, A.R. Wickremasinghe. Forum on Getting Research into Practices (GRIPS), Ministry of Healthcare and Nutrition and National Health Research Council. 18^th December 2008.

Quantification of health effects of air pollutants and identifying the interventions to reduce air pollution – A model for urban settings; G.B.S. Perera, Y.L.S. Nandasena, R. Emmanuel, National Annual Scientific Sessions 2008 on Ecological Medicine, 25^th October 2008.

Adolescents’ expectations on reproductive health information published by newspapers; B Kumarendran, YLS Nandasena, HTCS Abeysena; The 13^th Annual Academic Sessions of the College of Community Physicians of Sri Lanka, 18^th September 2008.

Coverage of reproductive health related articles published by selected Sinhalese newspapers and the perceptions of journalists and editorial staff; B Kumarendran, YLS Nandasena, HTCS Abeysena; The 13^th Annual Academic Sessions of the College of Community Physicians of Sri Lanka, 18^th September 2008.

Case series of patients underwent skin sparing mastectomy “SSM” with level II axillary clearance and immediate reconstruction with a myocutaneous flap; AHMPAnuruddha, BNPJawardana, YLS Nandasena, KASJBalawardana; Annual Scientific Sessions – 2008, College of Surgeons of Sri Lanka, 28^th August 2008.

Infant Feeding Practices at Nine Months of Age; Y.L.S. Nandasena, C. De Silva; 121 Anniversary Academic Sessions, Sri Lanka Medical Association, 20^th March 2008.

The Nutritional Status at Nine Months of Age: Are We below the WHO New Standards? Y.L.S. Nandasena, C. De Silva; 121 Anniversary Academic Sessions, Sri Lanka Medical Association, 20^th March 2008.

Demand of adolescent reproductive health information: Extent of fulfilling by the newspapers; B Kumarendran, Y.L.S. Nandasena, HTCS Abeysena; Research Seminar on Adolescent Reproductive and Sexual Health; 29^th November 2007.

Exposure to aerosol pollution and reported respiratory symptoms among school children in segments of urban and rural settings in Sri Lanka; Perera, G.B.S., Emmanuel, R., Nandasena, Y.L.S., Premasiri, H.D.S.: 3^rd National Symposium, Ministry of Environment, Sri Lanka, 28^th September 2007.

Street level air pollution and the effects of land use / urban planning variables: Initial findings from the Colombo Metropolitan Region; Perera, G.B.S., Emmanuel, R., Nandasena, Y.L.S.: 3^rd National Symposium, Ministry of Environment, Sri Lanka, 28^th September 2007.

Perera, G.B.S., Emmanuel, R., Nandasena,Y.L.S., Premasiri, H.D.S., Exposure to aerosol pollution and reported respiratory symptoms among city dwellers in Sri Lanka, 2^nd National Symposium, Ministry of Environment, Sri Lanka, March 2006.

A Descriptive Cross Sectional Study on Mothers Self-medicating Children. Clinical and Experimental Pharmacology and Physiology, 2004; 31 (s1) A63SHKariyawasam, DNNanayakkara, MACPMohottiarachchi, YLS Nandasena (abstract –poster presentation).

Identifying the offending species in snakebite: a clinical score for use in community based epidemiological surveys; A. Pathmeswaran, M.M.D. Fonseka, A.Kasturiratne, S. Nandasena, G.K.Gunatilaka, L.Gunaratne, A.P.deSilva, D.G. Lalloo, H.J. de Silva; 117^th Anniversary Academic Sessions, Sri Lanka Medical Association, 26 March 2004.

Beliefs and knowledge regarding snakebite in rural Sri Lanka: a qualitative survey; L. S. Makita, S. Nandasena, M.R.A.Costa, A.Kasturiratne, A.Pathmeswaran, D.G. Lalloo, H.J. de Silva; 116^th  Anniversary Academic Sessions, Sri Lanka Medical Association, 27^th  March 2003.

Deputy Provincial Director of Health Services, Western Province, Sri Lanka

Regional Director of Health Services, Ministry of Health,
Kalutara, Sri Lanka 

Deputy Regional Director of Health Services,
Ministry of Health, Kalutara, Sri Lanka