Estimating waterborne disease burden on society through microbiological water quality monitoring of an area a case study of Patna city

Abstract

Water is a very important resource for existence of all human life. Access to safe drinking-water plays a vital role in existence of human life. The growth of population coupled with economic newlinedevelopment put the quantity and quality of fresh water in stress. The UN General Assembly newlinedeclared the period from 2005 to 2015 as the International Decade for Action, Water for Life. newlineThe quality of water does have a great impact on public health in particular microbiological quality of water is important in preventing ill health. Water borne disease does place an excessive burden on population and health services of worldwide countries especially developing newlinecountries. The estimation of disease burden of water supply is a very important measure of risk to health associated with drinking water. Disease burden expressed in DALYs provides good basis for analysis of economic benefit/burden of either improvements/deterioration of microbial newlinequality of drinking water supplies. The results found in the study are all the water samples collected were found to be within limits for physical and chemical properties only bacteriological property was found to be more than the permissible limit according to IS 10500:2012. It was newlinefound that % TC contamination in monsoon was highest i.e. 89.18%, followed by post- monsoon (82.18%) and then pre monsoon (70.00%). The percentage contamination in municipal water supply (82.10%) is quite more than private boring (38.94%) in all seasons. The total and fecal coliform in water network generally exceeded the IS 10500 limits for drinking water. The level newlineof contamination was quite higher in municipal water users than private boring. The questionnaire revealed that Diarrhoea was the most common self-reported diseases followed by Dysentery, Typhoid and Jaundice. No chlorination and improper maintenance of overhead tanks and also age of water networks are the prime factors leading to self-reported diseases.