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Risk assessment and driving factors of trace metal(loid)s in soils of China

文献类型： 外文期刊

作者： Sun, Jiaxun 1 ; Zhao, Menglu 1 ; Cai, Boya 1 ; Song, Xiaoyong 1 ; Tang, Rui 1 ; Huang, Xinmiao 1 ; Huang, Honghui 2 ; Huang, Jian 1 ; Fan, Zhengqiu 1 ;

作者机构： 1.Fudan Univ, Dept Environm Sci & Engn, Shanghai 200433, Peoples R China

2.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Peoples R China

3.Guangdong Prov Key Lab Fishery Ecol & Environm, Guangzhou 510300, Peoples R China

关键词： Trace metal(loid)s; Accumulation; Ecological risk; Geo-detector model; BivariateMoran?s I

期刊名称：ENVIRONMENTAL POLLUTION （ 影响因子：9.988； 五年影响因子：10.366 ）

ISSN： 0269-7491

年卷期： 2022 年 309 卷

页码：

收录情况： SCI

摘要： Recently, with the rapid development of China's economy, the pollution of trace metal(loid)s (TMs) in soils has become increasingly severe and attracted widespread attention. Based on 1,402 published papers from 2000 to 2021, this study aimed to analyze the pollution intensity, ecological risk and driving factors for eight TMs (As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn) in Chinese soils. Results showed that the average concentrations of eight TMs in Chinese soils all exceeded background values, and the pollution of Cd and Hg was the most serious. Based on Principal component analysis of pollution intensity and ecological risk, the priority control TMs were identified for the heavily polluted provinces. The results of Geo-detector model suggested that Urban development factors contributed most to the TM accumulation in Chinese soils. Further, spatial analysis using bivariate Moran's I indicated that industrial activities contributed most to soil TM accumulation in the middle and lower reaches of the Yangtze River, while soil TM pollution in the southwest and northwest provinces was mainly caused by mining and metal smelting. This study investigated the relationship between soil TM pollution and anthropo-genic activities, thus providing a scientific basis for controlling soil TM pollution at a large-scale level.

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