Russia Potable water

Russia In different parts of the country's water supply can be fed either water from groundwater sources (wells), or from surface sources - rivers, lakes and reservoirs.

"Surface" water is usually more exposed to pollution: in the water will be exposed to waste water enterprises and farms, fall out, acid rain, it could grow microscopic algae or pathogens. But such water and clean more thoroughly: on special water treatment plants it is passed through filters, pollutants associated with substance-coagulants, and before serving in the disinfected water supply, killing the germs.

Water from artesian groundwater sources are generally more pure: it pollutants from the surface is not so easy to get to her. But it is usually more dissolved salts of calcium and magnesium, ie it is more rigid. I cleaned it, hoping for natural purity, not always carefully. But sometimes contaminants through cracks in the rocks penetrate very deeply.

Before serving in the water supply water quality control - it must conform to state standard, which establishes the maximum permissible concentration (MPC) for various pollutants. MPC - safe levels of contaminants: if a substance found in water in concentrations lower than the maximum permitted, such water may be no harm to the health drink even a lifetime.

The main indicator of water quality is considered its impact on human health.

Water supplies drinking in Russia is not recommended.

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