[The health, hygienic and toxicological characteristics of the natural water from the upper Volga].

The paper provides sanitary and toxicological water characteristics in the city of Yaroslavl on the Volga River in 1993-1996. The water was shown to contain high levels of petroleum products, COD, and toxic substances. The water concentrations of phenol were no greater than the acceptable values. Those of metals, pesticides, and detergents did not exceed the sanitary standards.