Health Risk Assessment of Heavy Metals in Surface Water of the Lhasa River, China

被引：0
作者：
He, Liu [1 ]
Gao, Bai [1 ]
Qin, Huanhuan [1 ]
Liu, Junping [1 ]
Ding, Xiaoyan [2 ]
Sanjay, Dhawan [3 ]
Dong, Andre [3 ]
机构：
[1] East China Univ Technol, Coll Water Resources & Environm Engn, Nanchang 330013, Jiangxi, Peoples R China
[2] Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China
[3] Second Geol Brigade Tibet Autonomous Reg Geol & M, Lhasa 850000, Peoples R China
来源：
16TH INTERNATIONAL SYMPOSIUM ON WATER-ROCK INTERACTION (WRI-16) AND 13TH INTERNATIONAL SYMPOSIUM ON APPLIED ISOTOPE GEOCHEMISTRY (1ST IAGC INTERNATIONAL CONFERENCE) | 2019年 / 98卷
关键词：
POLLUTION; REGION;
D O I：
10.1051/e3sconf/20199809011
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
This study was performed in Lhasa River Watershed to explore the contents of heavy metals in river water and assess the health risks. The test results show that the contents of arsenic (As), chromium (Cr) and uranium (U) are relatively low, reaching the Class III of the "Environmental quality standards for surface water (GB3838-2002)". Health risk assessment demonstrates that the average total risk value is 1.79x10(-5) yr(-1), which is lower than the maximum acceptable level of 5.05x10(-5) yr(-1) recommended by USEPA. Moreover, the average value of radionuclide risk (U) is calculated to be 9.47x10(-9) yr(-1), which is five orders of magnitude lower than the standard value of 5.0x10(-4) yr(-1). Therefore, the river water in the study area causes no significant health risk to people.
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页数：5
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