Pollution, cumulative ecological risk and source apportionment of heavy metals in water bodies and river sediments near the Luanchuan molybdenum mining area in the Xiaoqinling Mountains, China

被引：11
作者：
Chen, Zhenyu [1 ,2 ]
Zhao, Yuanyi [3 ]
Liang, Nan [1 ,2 ]
Yao, Yuan [1 ,2 ]
Zhao, Yu [1 ,2 ]
Liu, Tuo [1 ]
机构：
[1] China Geol Survey, Northwest Geol Sci & Technol Innovat Ctr, Xian Geol Survey Ctr, Xian 710054, Peoples R China
[2] China Geol Survey, Geol Res Ctr Orogen Zones, Xian 710054, Peoples R China
[3] Chinese Acad Geol Sci, Inst Mineral Resources, MNR Key Lab Metallogeny & Mineral Assessment, Beijing 100037, Peoples R China
来源：
MARINE POLLUTION BULLETIN | 2024年 / 205卷
关键词：
Heavy metals; Water body; Sediment; Cumulative ecological risk; Source apportionment; Molybdenum polymetallic ore concentration area; SPATIAL-DISTRIBUTION; SOILS; IDENTIFICATION; QUALITY; LAKE;
D O I：
10.1016/j.marpolbul.2024.116621
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The water and sediment samples were collected from the Yu River and Taowanbei River during periods of summer and winter. The NCPI, EWQI, I-geo and PERI were used to evaluate the pollution degree and cumulative ecological risk of HMs in the water and sediments. The PMF model was used to analyze the sources of HMs in river sediments. The pollution degree of Cd, Hg and Zn in the water reached the severe pollution level, in the rank of Hg > Zn > Cd. Cd and Zn in sediments are heavily polluted, Cu is lightly polluted, Pb and As are within the warning range, and the pollution rank is Cd > Zn > Cu > Pb > As. The cumulative ecological risk of HMs in sediments reached extremely strong level, mainly Cd and Hg. The main sources of HMs in sediments are mining sources, mixed agricultural and transport sources, and natural sources, which contributed 42.1 %, 34.1 % and 23.8 %, respectively.
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页数：12
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