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It is imperative to provide drinking water which is free from pathogens and other noxious substances which can cause sickness or disease. NATURAL RESOURCES 41 Drinking water should (i) be free from pathogens (ii) have required salts and should not have high concentration of minerals and organic matter. (iii) not have toxic chemicals Drinking Water Standards. The drinking water standards are the values for each parameter beyond which water is considered unfit for drinking. 1. Drinking Water – Specification (BIS 10500: 1991) Sl.

P. Districts Affected ••• Goa • •• ••• Karnataka •• 1– 40% 40–70% 70–100% Not known Tamil Nadu Kerala • •• The Number within each state is the fluoride range in drinking water. Source: UNICEF State of Art Report, 1999 Fig. 3. Fluorosis prevalent states of India. , all villages of the district are not monitored or samples are taken from some handpumps in a particular locality ignoring others. As per WHO estimates about 10 to 25% of rural population of various states is at risk. Health problems due to fluorosis: Fluoride expose may lead to dental (enamel) fluorosis and skeletal fluorosis (Fig.

These are only a few parameters for achieving sustainable growth. Until now development has been human-oriented, that too mainly, for a few rich nations. They have touched the greatest heights of scientific and technological development, but at what cost? The air we breathe, the water we drink and the food we eat have all been badly polluted. Our natural resources are just dwindling due to over exploitation. If growth continues in the same way, very soon we will be facing a “doom’s day”—as suggested by Meadows and co-workers in their world famous academic report “The Limits to Growth”.

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