Regime dynamics of hydrochemical and toxicological parameters of the Irtysh River in Kazakhstan  

作　　者：Diana M BURLIBAYEVA Malik Zh BURLIBAYEV Christian OPP BAO Anming 

机构地区：[1]Department of Water Resources and Land Reclamation,Kazakh National Agrarian University,Almaty 050010,Kazakhstan [2]Kazakhstan Agency of Applied Ecology,Almaty 050012,Kazakhstan [3]Department Hydrology&Soil Science,Faculty of Geography,Philipps University,Marburg 35032,Germany [4]Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China

出　　处：《Journal of Arid Land》2016年第4期521-532,共12页干旱区科学（英文版）

基　　金：supported by International Science&Technology Cooperation Program of China(2010DFA92720-04)

摘　　要：Since the Irtysh River flows through the important economic, ecological and social territories of China, Kazakhstan and Russia, the water quality issues growingly draw the attention of the water authorities from these countries. Therefore, a detailed study of the hydrochemical regime and toxicological indicators in Kazakhstan was carried out for understanding the regime dynamics of water quality and its affect factors. The combined assessment of maximum permissible concentration （MPC） of chemical components and biotesting method were proposed and performed for the study area. The results clearly showed that the concentrations of single chemical component at different locations are mostly under MPC standard in a basin scale. However, the watershed surface runoff and tributary stream flow from mining industry areas had high concentration of heavy metals and had significant impact on the water quality near Ust-Kamenogorsk. Furthermore, even the stream water generally meet MPC standard, the results of biotesting method show the toxicity level of water sample is lethal for the test objects of phytoplankton and Daphnia. The survival rates of most water samples are lower than 46.7%. Hereby, this study strongly suggests using combined water assessment methods to evaluate the water quality.Since the Irtysh River flows through the important economic, ecological and social territories of China, Kazakhstan and Russia, the water quality issues growingly draw the attention of the water authorities from these countries. Therefore, a detailed study of the hydrochemical regime and toxicological indicators in Kazakhstan was carried out for understanding the regime dynamics of water quality and its affect factors. The combined assessment of maximum permissible concentration （MPC） of chemical components and biotesting method were proposed and performed for the study area. The results clearly showed that the concentrations of single chemical component at different locations are mostly under MPC standard in a basin scale. However, the watershed surface runoff and tributary stream flow from mining industry areas had high concentration of heavy metals and had significant impact on the water quality near Ust-Kamenogorsk. Furthermore, even the stream water generally meet MPC standard, the results of biotesting method show the toxicity level of water sample is lethal for the test objects of phytoplankton and Daphnia. The survival rates of most water samples are lower than 46.7%. Hereby, this study strongly suggests using combined water assessment methods to evaluate the water quality.

关 键 词：HYDROCHEMISTRY biotesting method Irtysh River Kazakhstan 

分 类 号：X522[环境科学与工程—环境工程] X171.5