"Health risk assessment of trace metal(loid)s in agricultural soils based on Monte Carlo simulation coupled with positive matrix factorization model in Chongqing, southwest China"

作者全名："Ma, Jie; Chu, Lijuan; Sun, Jing; Wang, Shenglan; Ge, Miao; Deng, Li"

作者地址："[Ma, Jie; Sun, Jing; Wang, Shenglan; Ge, Miao; Deng, Li] Chongqing Ecol & Environm Monitoring Ctr, 4 01147, Chongqing, Peoples R China; [Ma, Jie; Sun, Jing; Wang, Shenglan; Ge, Miao; Deng, Li] Key Lab Organ Pollutants Environm Chem Behav & Eco, Chongqing 401147, Peoples R China; [Chu, Lijuan] Chongqing Hlth Ctr Women & Children, Dept Pediat, Chongqing 401147, Peoples R China; [Chu, Lijuan] Chongqing Med Univ, Dept Pediat, Women & Childrens Hosp, Chongqing 401147, Peoples R China"

通信作者："Ma, J (通讯作者)，Chongqing Ecol & Environm Monitoring Ctr, 4 01147, Chongqing, Peoples R China.; Ma, J (通讯作者)，Key Lab Organ Pollutants Environm Chem Behav & Eco, Chongqing 401147, Peoples R China."

来源：JOURNAL OF MOUNTAIN SCIENCE

ESI学科分类：ENVIRONMENT/ECOLOGY

WOS号：WOS:001152428500009

JCR分区：Q3

影响因子：2.5

年份：2024

卷号：21

期号：1

开始页：100

结束页：112

文献类型：Article

关键词：Monte Carlo simulation; Health risk assessment; Trace metal(loid)s; Positive matrix factorization; Agricultural soils

摘要："This study aimed to investigate the pollution characteristics, source apportionment, and health risks associated with trace metal(loid)s (TMs) in the major agricultural producing areas in Chongqing, China. We analyzed the source apportionment and assessed the health risk of TMs in agricultural soils by using positive matrix factorization (PMF) model and health risk assessment (HRA) model based on Monte Carlo simulation. Meanwhile, we combined PMF and HRA models to explore the health risks of TMs in agricultural soils by different pollution sources to determine the priority control factors. Results showed that the average contents of cadmium (Cd), arsenic (As), lead (Pb), chromium (Cr), copper (Cu), nickel (Ni), and zinc (Zn) in the soil were found to be 0.26, 5.93, 27.14, 61.32, 23.81, 32.45, and 78.65 mg/kg, respectively. Spatial analysis and source apportionment analysis revealed that urban and industrial sources, agricultural sources, and natural sources accounted for 33.0%, 27.7%, and 39.3% of TM accumulation in the soil, respectively. In the HRA model based on Monte Carlo simulation, non-carcinogenic risks were deemed negligible (hazard index <1), the carcinogenic risks were at acceptable level (10(-6) <total carcinogenic risk <= 10(-4)), with higher risks observed for children compared to adults. The relationship between TMs, their sources, and health risks indicated that urban and industrial sources were primarily associated with As, contributing to 75.1% of carcinogenic risks and 55.7% of non-carcinogenic risks, making them the primary control factors. Meanwhile, agricultural sources were primarily linked to Cd and Pb, contributing to 13.1% of carcinogenic risks and 21.8% of non-carcinogenic risks, designating them as secondary control factors."

基金机构：Project of Chongqing Science and Technology Bureau [cstc2022jxjl0005]

基金资助正文：This study was supported by Project of Chongqing Science and Technology Bureau (cstc2022jxjl0005).