CHARACTERISTICS OF RISK, CAUSED BY CHEMICAL COMPOSITION OF DRINKING WATER, TO THE PUBLIC HEALTH IN THE RURAL AREAS OF THE SOUTHERN AMUR REGION
https://doi.org/10.12737/article_58e45af0046c22.12950196
Abstract
This article features the issues concerning the impact of chemical elements in drinking water on the human health in the rural areas located in the south of the Amur Region. Ground waters from the Zeya-Bureya artesian basin used for the domestic and drinking purposes are the main source of water supply in these areas and, thus, are selected as the object of the study. For this purpose the content of chemical elements in water samples collected from 361 wells located in 167 settlements has been studied. Health risk factors assessment from chemical elements was carried out. The main scenario of penetration of these substances into the human organism was selected a peroral way, i.e. when consuming water for drinking. Toxic and cancerogenic risk to health was assessed. It was established that within the major part of the study area the values of the individual hazard quotients (HQi) for chemical elements in drinking water at the geochemical background level do not exceed the upper limit of the safe level. The values of individual cancerogenic risks of chemical elements in drinking water do not exceed those for the permissible risks (ranging from 1·10-6 - 1·10-5) for the populated areas in Russia. At the same time, in the villages located within the limited area of the narrow riverside strip about 10 km wide along the left bank of the Amur river and the right bank of the Zeya river there was observed a high probability of toxic effects from arsenic contained in drinking water (HQi from 0.4 to 3.8). The values of individual cancerogenic risks from arsenic exposure (CRi from 0.1·10-3 to 0.7·10-3) calculated for these villages exceeded the permissible value. Thus, on the main territory of the rural areas of the Amur Region south there is no potential risk for development of both toxic and cancerogenic effects from environmental chemical elements contained in drinking water. But, within the riverside areas of the Amur and Zeya rivers there are some zones of hydrochemical arsenic anomaly where the toxic and cancerogenic risk due to its higher concentrations is regarded as quite alarming.
About the Author
A. A. Popov
Institute of Geology and Nature Management of Far Eastern Branch RAS
Russian Federation
Russian Federation
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Review
For citations:
Popov A.A. CHARACTERISTICS OF RISK, CAUSED BY CHEMICAL COMPOSITION OF DRINKING WATER, TO THE PUBLIC HEALTH IN THE RURAL AREAS OF THE SOUTHERN AMUR REGION. Bulletin Physiology and Pathology of Respiration. 2017;(63):85-90. (In Russ.) https://doi.org/10.12737/article_58e45af0046c22.12950196
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