Contamination and Probabilistic Health Risk Assessment of Heavy Metals in Agricultural Soils Around a Lead-Zinc Smelter

被引：0
|
作者：
Huang J.-B. [1 ,2 ]
Jiang D.-D. [1 ,2 ]
Wen B. [1 ,2 ]
Wang L. [1 ,2 ]
Shi J.-Q. [1 ,2 ]
Zhou Y. [1 ,2 ]
机构：
[1] Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing
[2] State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing
来源：
Huanjing Kexue/Environmental Science | 2023年 / 44卷 / 04期
关键词：
agricultural soil; ecological risk; heavy metal contamination; lead-zinc smelter; probabilistic health risk;
D O I：
10.13227/j.hjkx.202205055
中图分类号：
学科分类号：
摘要：
In order to identify the contamination and health risks of heavy metals in agricultural soils, a total of 56 surface soil samples (0-20 cm) were collected around a Pb-Zn smelter in Yunnan Province, and six heavy metals (Pb, Cd, Zn, As, Cu, and Hg) and pH were analyzed to assess heavy metal status, ecological risk, and probabilistic health risk. The results revealed that the average contents of six heavy metals (Pb: 4 413. 93 mg.kg - 1 , Cd: 6. 89 mg.kg - 1 , Zn: 1 672. 76 mg.kg - 1 , As: 44. 45 mg.kg - 1 , Cu: 47. 61 mg.kg - 1 , and Hg: 0. 21 mg.kg - 1 ) were higher than their background values in Yunnan Province. Cd had the highest mean geo-accumulation index (Igeo) of 0. 24, the highest mean pollution index (pi ) of 30. 42, and the greatest average ecological risk index (Er ) of 1 312. 60, indicating that Cd was the primary enriched and highest-ecological risk pollutant. The mean hazard index (HI) through exposure to six HMs was 2. 42E - 01 and 9. 36E - 01 for adults and children, respectively, with 36. 63% of HI values for children exceeding the risk threshold of 1. Moreover, the mean total cancer risks (TCR) were 6. 98E -05 and 5. 93E -04 for adults and children, respectively, with 86. 85% of TCR values for children exceeding the guideline value of 1E-04. The probabilistic health risk assessment suggested that Cd and As were the main contributors for the non-carcinogenic risks and carcinogenic risks. This work will provide scientific reference for the precise risk management and effective remediation strategy of soil heavy metal pollution in this study area. © 2023 Science Press. All rights reserved.
引用
收藏
页码：2204 / 2214
页数：10
相关论文
共 47 条
  • [1] Jiang H H, Cai L M, Wen H H, et al援 An integrated approach to quantifying ecological and human health risks from different sources of soil heavy metals [ J ], Science of the Total Environment, 701, (2020)
  • [2] Guan Q Y, Wang F F, Xu C Q, Et al., Source apportionment of heavy metals in agricultural soil based on PMF: a case study in Hexi Corridor, northwest China, Chemosphere, 193, pp. 189-197, (2018)
  • [3] Zhang P Y, Qin C Z, Hong X, Et al., Risk assessment and source analysis of soil heavy metal pollution from lower reaches of Yellow River irrigation in China [ J ], Science of the Total Environment, 633, pp. 1136-1147, (2018)
  • [4] Jiang Z C, Guo Z H, Peng C, et al援 Heavy metals in soils around non-ferrous smelteries in China: status, health risks and control measures, Environmental Pollution, 282, (2021)
  • [5] Xu X B, Wang T, Sun M X, Et al., Management principles for heavy metal contaminated farmland based on ecological risk-A case study in the pilot area of Hunan province, China [ J], Science of the Total Environment, 684, pp. 537-547, (2019)
  • [6] Wang R, Deng H, Yan M S, Et al., Assessment and source analysis of heavy metal pollution in farmland soils in southern Youyang County, Chongqing, Environmental Science, 41, 10, pp. 4749-4756, (2020)
  • [7] Wu J, Lu J, Li L M, Et al., Pollution, ecological-health risks, and sources of heavy metals in soil of the northeastern Qinghai-Tibet Plateau, Chemosphere, 201, pp. 234-342, (2018)
  • [8] Li Y L, Chen W P, Yang Y, Et al., Heavy metal pollution characteristics and comprehensive risk evaluation of farmland across the eastern plain of Jiyuan city [ J ], Acta Scientiae Circumstantiae, 40, 6, pp. 2229-2236, (2020)
  • [9] Huang C C, Cai L M, Xu Y H, Et al., A comprehensive exploration on the health risk quantification assessment of soil potentially toxic elements from different sources around large-scale smelting area [ J], Environmental Monitoring and Assessment, 194, 3, (2022)
  • [10] Liu Y, Niu X K, Et al., Health risk assessment of soil heavy metals in a small watershed of amining area in Yunnan, Environmental Science, 43, 2, pp. 936-945, (2022)
12345