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Tamil Nadu
Discussion on: Members of NGOs attending a workshop in Krishnagiri on Thursday. – KRISHNAGIRI: Contamination of piped drinking water is 71 per cent, according to a study conducted jointly by the IIT Chennai and Sri Ramachandra Medical College, Porur.Dr. Ligy Philip, Associate Professsor, and Dr. Indumathy, Professor, Department of Civil Engineering, IIT Chennai, led the study team. On the sidelines of a two-day workshop on ‘Water Quality and Related Health Issues’ organised to create awareness among the people, they told The Hindu that the purpose of the workshop was to highlight the importance of water quality, hygiene, and various treatment options available to improve the quality of water. Participants were taught how to use water quality test kits for the analysis of various water quality parameters. They were taught to prepare test kits, and H2S strip bottle. They demonstrated various defluoridation technique, performance of activated alumina-based household and potable filters developed at IIT, Chennai. Defluoridation of contaminated water to was demonstrated to the participants. “We collected samples from 87 villages of Krishnagiri and Burgur blocks in Krishnagiri district, interviewed 288 students. Water sample analysis was carried out during pre-monsoon and post-monsoon periods,” they said. The test results showed that 25 per cent of the water sources were contaminated by bacteria during pre-monsoon period. Whereas this has increased to 35 per cent during post monsoon. Samples of piped drinking water and borewell showed the fecal contamination. Whereas 71 per cent of hand-pump samples were free from such contamination. About 75 per cent of the collected water samples showed fluoride concentrations higher than the prescribed 1.5 mg a litre. In some places, the result showed 7 mg to 8 mg a litre. Many samples showed significant concentration of nitrate, which causes blue baby disease. Among the school children 90 per cent of them were affected by dental fluorosis. Many people are affected even with skeletal fluorosis, they said. UNICEF has sponsored the study and they had been collecting samples, testing and interviewing school students and people living in two blocks for the last three months. P. Ganesamurthy and A. Abdul Rahman from UNICEF, IIT research students and 20 members from various NGOs participated in the workshop. The team will submit its report to the district level committee headed by the Collector on December 10 at Krishnagiri.
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