The assessment of environmental quality and risks for thepopulation of the city of Zakamensk - territory of long-term storage of waste of dzhidinsky tungsten-molybdenum combine

The long-term storage of the waste of the past activity of Dzhidinsky tungsten and molybdenum combine (DTMC) in the territory of the Republic of Buryatia, city of Zakamensk, was shown to become a reason of the high content of suspended solids, lead and the constant presence of heavy metals (cadmium, nickel, chromium, etc.) in ambient air. In case of the regulatory water quality of centralized water supply system, the city is distinguished by high levels of heavy metals in the water ofpublic and private wells. The high concentrations of heavy metals in soils of the city have been registered. Locally produced food products comply with hygiene requirements, but in the plant and in the dairy and meat products the heavy metals are registered in the relevant concentrations, the combined effect of which generates higher levels of risk (HIfo up to 1.60). The presence of the components specific to the DTMC waste in all objects of the environment generates unacceptable for the residents carcinogenic risk (TCR up to 1.5*10^-3) and non-carcinogenic risks of disorders of the respiratory function, central nervous system, blood system, the endocrine system and etc. (total hazard index (THI) accounted of up to 17). Priority risk factors are associated with chromium, lead, copper, manganese and cadmium particles entering the body with the atmospheric air, drinking water and localfood products.

гигиеническая оценка, качество среды обитания, отходы прошлой хозяйственной деятельности, риск здоровью, тяжелые металлы, hygienic assessment of the quality of the environment, waste of past activities, heavy metals, the risk to health