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ECOLOGICAL HYGIENIC ASSESSMENT OF THE ENVIRONMENT OF ADJACENT TERRITORIES OF ZONES OF ANTHROPOGENIC IMPACT


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Abstract

The ecological and hygienic assessment of environmental areas adjacent to the zones of anthropogenic exposure in the cold season of the year. As the object of research there was chosen ecologically unfavorable Aral Sea region -settlement Aiteke bi in the - Kyzylorda region of the Republic of Kazakhstan. The aim of research was to identify chemical pollutants in the environment of the settlement of Aiteke Bi. During the execution of the study there was used a complex of modern certified ecological-hygienic, chemical-analytical and static methods of the analysis (photoionizing, electrochemical, optical, photometric, complexonometric, weight, titrimetric). Results of the study of ambient air showed the excess of the concentration of suspended particulate matter 1.78 MPC daily averages, the value of Air Pollution Index (API ) was low (API4= 1.3 c.u.). The quantitative chemical analysis of drinking water showed the presence of low concentrations of heavy metals: cadmium - 0,3MPC, nickel - 0.5MPC, iron - 0.4MPC, zinc - 0.6MPC, cobalt - 0.4MPC (water pollution index (WPI)= 0.2 cu), clean water is of quality class 2. There was revealed a low level of soil contamination (Zc =0.1 c.u.), however, observed in all samples there were noted excesses of sulfate MPC (by to 193.8 times) and chlorides (3.9 times). Concentrations of polluting chemicals discovered in the total territory of the settlement of Aiteke bi are related to the activity of more than twenty-one companies producing oxygen, building materials, metal plastic products, executing the exploration and production of minerals. Each out of the identified chemical impurities is widely used in manufacturing, thereby is accumulated in the environment and easily gets into the body with both food and water, and via air inhalation. There is observed a chronic intake of chemical contaminants.


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