Risk Assessment of Dissolved Trace Elements and Heavy Metals in the Upper Reaches of the Yangtze River, China

文献类型： 外文期刊

第一作者： Chen, Yuanyuan

作者： Chen, Yuanyuan;Jiang, Wei;Li, Bo;Chen, Yuanyuan;Jiang, Wei;Li, Bo;Chen, Yuanyuan;Xiong, Fei;Zhai, Dongdong;Liu, Hongyan;Duan, Xinbin;Chen, Daqing

作者机构：

关键词： Yangtze River; ICP-AES; trace elements; heavy metals; WQI; HQ

期刊名称：WATER （ 影响因子：3.4； 五年影响因子：3.5 ）

ISSN：

年卷期： 2023 年 15 卷 7 期

页码：

收录情况： SCI

摘要： The Yangtze River Basin, one of China's five major watersheds and a primary source of drinking water for the country, is experiencing serious environmental pollution as heavy metals are discharged into its rivers. To evaluate the water quality of the river, determined water quality parameters were compared with the maximum permissible limit values recommended by the World Health Organization and Chinese drinking water standards. Physical and chemical analyses were conducted on water samples taken from 19 locations along the river's path. The study quantified the contents of sodium (Na), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), lithium (Li), cobalt (Co), copper (Cu), iron (Fe), manganese (Mn), scandium (Sc) and mercury (Hg). The results show that the average values of Mg, Sr, Co, Cu, Fe, Mn and Sc are higher than the historical background values. Moreover, through a correlation analysis it was concluded that these nutrients and trace metals have high values due to anthropogenic pollution in the study area. The computed WQI values range between 9.59 and 20.26, indicating excellent water quality in the river basin. Finally, hazard quotient (HQ) values show that exposure to the detected pollutants will have no adverse effects on human health and does not pose a potential non-carcinogenic risk.

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