Assessment of Drinking Water Quality in the City of Bangalore, India
Meenakshi Piplani1, Tarun Kumar2
1M.S. Ramaiah Institute of Technology,Bangalore, India; 2Indian Institute of Science, Bangalore, India
According to the World Health Organization (WHO), drinking water, also known as potable water is water that is safe to drink or use in food preparations without health risks. Safe drinking water is fundamental to human survival, the provision of which is an effective tool for reducing poverty and promoting health. In India, there were 7197 reported cases of death caused due to water-borne diseases like Acute Encephalitis Syndrome (AES), cholera, viral hepatitis, typhoid and Acute Diarrheal diseases in the year 2011-12. Thus, providing access to safe drinking water is of critical importance that maybe used as a measure of development of a nation.
Water maybe polluted by bacteria, chemicals or radiation. In this paper we examine various samples from drinking water sources in Mathikere, Bangalore to test their suitability for consumption. Random sampling of water from 15 sources was undertaken to test them for the presence of E.Coli. On a scale of one to ten, E.Coli level of one renders water unfit for consumption (WHO). Furthermore, TDS meter, oxidation reduction potential meter, ph tester and the dissolved oxygen meter were used to assess the quality of water.
The sampling was undertaken at periodic time-frames before and after the monsoon season. Results were analyzed and tabulated to ascertain the levels of contamination of the samples. It was seen that most samples were contaminated by E.Coli bacteria. Also, the incidence of contamination is higher post-monsoon. Thus, the study provides critical information for the improvement of water quality standards for the benefit of various stakeholders.