Merezhko O.E., Stanishevskaya N.B. - Qualitative and Quantitative Water Composition of the Irikla Storage Reservoir

Written by Erkin Turdibaev

Thursday, 11 February 2016

The waters quality of the Irikla storage reservoir and its tributaries has been studied in the course of the system of hydrochemical monitoring implementation by the complex of organoleptic and hydrochemical indices. It is ascertained that the results of tropho-saprobic tests show that the waters of Irikla storage reservoir belong to the beta-mesosaprobic class, thus by the level of nature trophy it is referred to the eutrophic class. By the saltiness index the water of the above reservoir is referred to medium-mineralized (the content of salts less than 0.5 g/l), by the water hardness index to that of moderate hardness (3-6 mg•ekv/l), by the hydrogen index-to standard one (pH from 6.5 to 8.5). The increased content of chlorides can be explained by sewage pollution of the reservoir. The concentrations of waste oil products in the reservoir did not exceed the specified standard values, i.e. 0.1-0.5 MPC. It is supposed that the presence of increased MPC of phenols and heavy metal ions in the waters of Irikla storage reservoir is connected with the inflow of inadequately purified sewage of mining and metallurgical enterprises of Chelyabinsk region and Republic of Bashkortostan into the river Ural and its tributaries. It is proved that in spite of unfavorable geoecological situation the Irikla reservoir indices are assessed as the best possible ones as compared with its tributaries. The recommendations to carry out regular ecological monitoring of water quality of the above reservoir and its tributaries, purposed to prevent the development of unfavorable ecological processes, which could have negative impact on the viability of hydrobionts and the ecosystem of the reservoir as a whole, are given. Download (in Russian) (pdf, 222 kB) Source: http://cyberleninka.ru/

 

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