Gigiena i sanitariia
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Gigiena i sanitariia · Jul 2009
Comparative Study[The structure of an aerogenic load and risk to human health in an industrial town's residential area].
Chemical air pollution of the residential and industrial areas of a town was evaluated. There was a significant relationship of the average daily actuating concentrations of priority substances to the air pollution of the study areas, the average annual concentrations of ambient air pollutants to their seasonal values. The structure of the risk to community health and the contribution of the industrial environment to the formation of a health risk were ascertained.
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Gigiena i sanitariia · Jul 2009
Comparative Study[Regional features of children's biological reactions to environmental factors].
The levels of trace elements in the biological substrates were comparatively analyzed in the children living in the towns of Aktobe, Orenburg, and Orsk. The values of blood metals were ascertained in the Aktobe children residing in the areas differently spaced from the town's industrial zone. Immunity was evaluated and the degree of immunodeficiency was established.
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Gigiena i sanitariia · Jul 2009
Comparative Study[Influence of environmental factors on the pediatric population in the urbanized and rural areas of the Orenburg Region].
The paper gives the data of studies establishing the regularities of formation of the composition, levels, and space-time features of pollution of ambient air, soil, and drinking water in the risk of their influence of the health status of the children residing in the urbanized and rural areas. The studies have ascertained that the magnitude of a complex anthropogenic load of the environment on the pediatric population living in the urbanized area is 4.9 times higher than that in the rural area. ⋯ The urbanized area has been found to be most unfavorable as to the risk of development of non-carcinogenic effects with the calculated hazard indices being kept in mind. The same trend is shown for the calculated population risk indices.
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Gigiena i sanitariia · Jul 2009
Comparative Study[The content of toxic trace elements in the conjugate media].
The purpose of this study was to make a qualitative and quantitative analysis of the content of toxic trace element (Pb, Co, Ni, Cd, Ni, Cd, Sr, and Cr) in the deposited media (snow cover, soil) and drinking water and to define the relationship of the levels of elements in the snow-soil and soil-water systems. The analysis was made in the economic (eastern, western, and central) areas of the region. The higher levels of metals were recorded in the snow cover and soil of the eastern area, which was caused by a high man-made load. ⋯ The average level of trace elements in the drinking water was not greater than the maximum permissible concentration in the whole region. The summary pollution index in the drinking water was higher in the western area. It should be noted that the western area showed the largest number of direct correlations with the content of elements in the soil-water system: Pb (r = 0.99), Co (r = 0.84), Ni (r = 0.38).
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Gigiena i sanitariia · Jul 2009
[Assessment of human health risk upon acute inhalational exposure to chemical substances].
To provide the safety of the population and environment with the occurrence of man-caused catastrophes due their increase is now an urgent problem. Toxic hazard coefficients were calculated for hydrogen sulfide in the settlements located in a possible chemical pollution area in the Orenburg gas-chemical complex. Assessment of the hazard of toxic effects to the population upon exposure to hydrogen sulfide has indicated that there may be toxic effects in the inhabitants of the study nearby inhabited localities. The findings do not characterize the possible severity of intoxication so it is necessary to develop a system of criteria for the differentiation of the severity of negative effects in order to evaluate the hazard of acute chemical exposures.