[Assessment of human health risk due to environmental pollution in the city of Orsk].

The established tense ecological situation in the town of Orsk presents a serious human threat. The use of methods for assessing the risk has allowed the authors to determine the values of carcinogenic and noncarcinogenic risks. Due to the influence of all environments polluted by industrial emissions, the total annual carcinogenic risk is 2.31 cases for the adult population of the town and 0.49 for its children. The greatest carcinogenic risk is associated with arsenic in water and foodstuffs, hexavalent chromium, cadmium, and formaldehyde in the air. The high concentrations of dust, phenol, nitrogen dioxide, and carbon oxide cause a major damage to human health. The established specific values of this risk are of relative significance.