Poor performance
efforts to remove arsenic from drinking water in West Bengal are failing, as per a study by Dipankar Chakraborti, head of the School of Environmental Studies, Jadavpur University, Kolkata. Chakraborti's team monitored 18 arsenic-removal plants in West Bengal over a two-year period. These plants have been made by 11 different manufacturers in India, Germany and the us; each costs, on an average, us$1,500 and uses a series of filters and extraction systems to achieve removal of arsenic from drinking water.
The scientists found none of the plants reduced arsenic levels below the maximum safe value stipulated by the World Health Organization (who). The average arsenic concentration in treated water measured over two years was 26 microgrammes per litre
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