DOI: http://dx.doi.org/10.18203/2394-6040.ijcmph20213028

Water quality at the source and incidence of water borne diseases in rural households of South India

Thayyil Jayakrishnan, Bhaskar Rao, Milu Elizabath Cyriac, P. S. Harikumar, Jeeja Mathummal Cherumanalil

Abstract


Background: The relation of water quality indicators and water borne diseases (WBD) is not properly studied in tropical countries like India. Most of the studies done were cross sectional which reported only point prevalence. This tends to under-estimate and is not adequate to explain the relation. In this context to assess the incidence of water born diseases in relation to household drinking water quality, a longitudinal prospective study was conducted.

Methods: The study was conducted in a South Indian state, in a rural area among the members of 300 households by weekly data collection for one year. Water samples were collected and analysis was done thrice corresponding to the climate. Bacterial quality indicators - Total coliform count (TCC), Faecal coliform count (FCC) and E. coli were estimated. The data were processed and analyzed.

Results: From 300 households, total 1459 persons were enrolled. During the 12 months period, 72 episodes of WBDs were recorded with incidence rate of 49/1000 person years. Proportional morbidity due to WBD was 11.9%. The WBD reported were ADD, dysentery and hepatitis A. Up to 30% water sources contained E. coli in summer and winter samples and more than 60% in rainy samples. Faecal coliform count was >10 MPN/100 ml in all the seasons in more than 60% water sources

Conclusions: Most of the main water source wells were contaminated. Contamination was more in rainy season. Incidence of WBD has no correlation with water quality indicators in all the seasons (p≥0.05).


Keywords


Drinking water quality, Bacteriological indicators, Water borne diseases, South India

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References


World Health Organization. Rapid assessment of drinking-water quality: a handbook for implementation. World Health Organization. 2012. Available at: https://apps.who.int/iris/handle/10665/331485. Accessed on 10 June 2021.

UNICEF Handbook on Water Quality. United Nations Children's Fund (UNICEF), New York. 2008;160. Available at: https://www.unicef.org/documents/2008-unicef-handbook-water-qualityhttps://jalshakti-. Accessed on 21 May 2021

Bain RE, Gundry SW, Wright JA, Yang H, Pedley S, Bartram JK. Accounting for water quality in monitoring access to safe drinking-water as part of the Millennium Development Goals: lessons from five countries. Bulletin of the World Health Organization. 2012;90:228-35.

Payden. Towards sustainable access to safe drinking water in South-East Asia. WHO South-East Asia Journal of Public Health. 2015;4:1-2.

Bain R, Cronk R, Wright J, Yang H, Slaymaker T, Bartram J. Fecal contamination of drinking-water in low-and middle-income countries: a systematic review and meta-analysis. PLoS Med. 2014;11(5):e1001644.

Bain R, Cronk R, Hossain R, Bonjour S, Onda K, Wright J et al. Global assessment of exposure to faecal contamination through drinking water based on a systematic review. Tropical Medicine & International Health. 2014;19(8):917-27.

Zin T, Mudin KD, Myint T, Naing DK, Sein T. Influencing factors for household water quality improvement in reducing diarrhoea in resource-limited areas. WHO South-East Asia journal of public health. 2013;2(1):6-11.

Malhotra S, Sidhu SK, Devi P. Assessment of bacteriological quality of drinking water from various sources in Amritsar district of northern India. The Journal of Infection in Developing Countries. 2015;9(08):844-8.

Kumar M, Puri A. A review of permissible limits of drinking water. Indian journal of occupational and environmental medicine. 2012;16(1):40.

Ministry of Drinking Water and Sanitation (MDWS). Uniform Drinking Water Quality Monitoring Protocol. Available at: ddws.gov.in/sites/default/files/UniformDrinkingWaterQualityMonitoringProtocol.pdf. Accessed on 10 May 2021.

Report. Study on Disease Burden Due to Inadequate Water & Sanitation Facilities in India. Sulabh International Academy of Environmental Sanitation Palam, New Delhi. 2007.

Ye B, Yang L, Li Y, Wang W, Li H. Water sources and their protection from the impact of microbial contamination in rural areas of Beijing, China. International journal of environmental research and public health. 2013;10(3):879-91.

Taneja N, Singh M, Rao P, Biswal M, Priya S, Chander R, Sharma M. Fecal contamination of drinking water supplies in and around Chandigarh and correlation with acute gastroenteritis. The Journal of communicable diseases. 2011;43(3):193-9.

State Environment Report. Government of Kerala. India. 2007. Available at: http://moef.gov.in/wp-content/uploads/2018/04/Kerala_SoE2007-V1_0.pdf. Accessed on 10 May 2021.

Jayakrishnan Thayyil. Status of Drinking water sources and water borne disease in Kerala. Science and Technology in Transforming Women's Lives. 2013;1. 2-6.

Rejith PG, Jeeva SP, Vijith H, Sowmya M, Hatha AM. Determination of groundwater quality index of a highland village of Kerala (India) using geographical information system. Journal of Environmental Health. 2009;71(10):51-61.

Anjali, Rajeena, Harikumar. Assessing ground water vulnerability and risk from on –site sanitation at Calicut city. Kerala Environment Congress Proceedings. Center for Environment and Development. 2008;135-9.

Jensen PK, Jayasinghe G, van der Hoek W, Cairncross S, Dalsgaard A. Is there an association between bacteriological drinking water quality and childhood diarrhoea in developing countries? Tropical medicine & international health. 2004;9(11):1210-5.

Levy K, Nelson KL, Hubbard A, Eisenberg JN. Rethinking indicators of microbial drinking water quality for health studies in tropical developing countries: case study in northern coastal Ecuador. The American journal of tropical medicine and hygiene. 2012;86(3):499-507.

Jayakrishnan T, Thomas B. Status of Household drinking water source, water use and it’s correlation with Water borne disease in rural area of Kerala. Proceedings Kerala Environment Congress. 2009;216-23.

Jayakrishnan T, Jeeja MC. Disease Burden of Kerala. Research Report. Thrissur: India. Society for Social Health Action and Research. 2007;27.

Megha PU, Kavya P, Murugan S, Harikumar PS. Sanitation mapping of groundwater contamination in a rural village of India. Journal of Environmental Protection. 2015;6(01):34.

Satapathy BK. Safe drinking water in slums: from water coverage to water quality. Economic and Political Weekly. 2014;50-5.

Thankappan KR. Diarrhoea morbidity among under-five children: A comparative study of two villages. Centre for Development Studies. 2002.

Myint SL, Myint T, Aung WW, Wai KT. Prevalence of household drinkingwater contamination and of acute diarrhoeal illness in a periurban community in Myanmar. WHO South-East Asia journal of public health. 2015;4(1):62-8.