Health Risk Assessment and Priority Control Factors Analysis of Heavy Metals in Agricultural Soils Based on Source-oriented

被引：1
|
作者：
Ma J. [1 ,2 ]
Ge M. [1 ,2 ]
Wang S.-L. [1 ,2 ]
Deng L. [1 ,2 ]
Sun J. [1 ,2 ]
Jiang Y. [1 ,2 ]
Zhou L. [1 ,2 ]
机构：
[1] Chongqing Ecological and Environmental Monitoring Center, Chongqing
[2] Key Laboratory of Organic Pollutants in Environmental Chemical Behavior and Ecological Toxicology of Chongqing, Chongqing
来源：
Huanjing Kexue/Environmental Science | 2024年 / 45卷 / 01期
关键词：
Chongqing; health risk assessment; heavy metals; Monte Carlo; PMF model; soil;
D O I：
10.13227/j.hjkx.202303103
中图分类号：
学科分类号：
摘要：
To analyze the source apportionment and health risk of heavy metals in agricultural soils of major producing areas of agricultural products in Chongqing，a positive matrix factorization（PMF）model and health risk assessment（HRA）model based on Monte Carlo simulation were used. Meanwhile，both the PMF and HRA model were combined to explore health risks of heavy metals in agricultural soils by different pollution sources in order to determine the priority control factors. The results showed that the average values of Cd concentration were higher than its corresponding background value；the average values of Cr concentration were lower than its corresponding background value；and the average values of As，Pb，Cu，Ni，and Zn concentration were basically consistent with their corresponding background values. Using PMF model analysis，natural sources，industrial sources，and agricultural sources were identified as the determinants for the accumulation of heavy metals in agricultural soils，with the contribution rates of 35%，24%，and 41%，respectively. Using the HRA model based on Monte Carlo simulation analysis，carcinogenic risks of adult and children were tolerable（1. 00E−6 < TCR ≤ 1. 00E−4），whereas non-carcinogenic risks were acceptable（HI ≤ 1）. Oral ingestion was the main exposure pathway. The analysis results of the relationship among heavy metals，pollution sources，and health risks showed that industrial pollution and As were identified as priority control factors，and agricultural pollution and Cd were identified as secondary control factors. Our findings provide scientific support for decision makers to control soil pollution and reduce the management costs of soil pollution. © 2024 Science Press. All rights reserved.
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页码：396 / 406
页数：10
相关论文
共 61 条
  • [1] (2014)
  • [2] Qin G W，, Niu Z D，Yu J D，, Et al., Soil heavy metal pollution and food safety in China：effects，sources and removing technology［J］, Chemosphere, (2021)
  • [3] Yang Q Q, Li Z Y，, Lu X N，, Et al., A review of soil heavy metal pollution from industrial and agricultural regions in China pollution and risk assessment ［J］, Science of the Total Environment, 642, pp. 690-700, (2018)
  • [4] Briffa J, Sinagra E，, Blundell R., Heavy metal pollution in the environment and their toxicological effects on humans ［J］, Heliyon, 6, 9, (2020)
  • [5] Fang J，, He Y, Huang N T，, Et al., Integrated analysis on source-exposure risk of heavy metal in farmland soil based on PMF model a case study in the E-waste dismantling area in Zhejiang Province ［J］, Environmental Science, 44, 7, pp. 4027-4038, (2023)
  • [6] Cao S Z，, Duan X L，, Zhao X G，, Et al., Health risks from the exposure of children to As，Se，Pb and other heavy metals near the largest coking plant in China ［J］, Science of the Total Environment, 472, pp. 1001-1009, (2014)
  • [7] Liu X M, Song Q J，, Tang Y，, Et al., Human health risk assessment of heavy metals in soil-vegetable system：a multi-medium analysis ［J］, Science of the Total Environment, 463-464, pp. 530-540, (2013)
  • [8] Wang M S, Gui C L，, Et al., Differences in the risk assessment of soil heavy metals between newly built and original parks in Jiaozuo，Henan Province，China［J］, Science of the Total Environment, 676, pp. 1-10, (2019)
  • [9] Wang R，, Chen N, Zhang E X., Pollution risk and contribution analysis of Pb，Cd，and As in soils and crops under different land use types in Longyan City［J］, Environmental Science, 44, 4, pp. 2252-2264, (2023)
  • [10] Mao C P，, Song Y X，, Chen L X，, Et al., Human health risks of heavy metals in paddy rice based on transfer characteristics of heavy metals from soil to rice［J］, CATENA, 175, pp. 339-348, (2019)
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