A novel regional-scale human health risk assessment model for soil heavy metal(loid) pollution based on empirical Bayesian kriging

	A novel regional-scale human health risk assessment model for soil heavy metal(loid) pollution based on empirical Bayesian kriging
	Wang, Liting; Liu, Renzhi; Liu, Jing; Qi, Yushun; Zeng, Weihua; Cui, Baoshan
刊名	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
	2023
卷号	258
英文摘要	Soil heavy metal(loid)s contamination caused by rapid urbanization and industrialization seriously affects human health and hinders the global sustainable development goals (SDGs). Currently, there is a lack of comprehensive human health risk assessment (HHRA) studies for multiple land use types at the regional scale. We propose a practical risk assessment framework that integrates empirical Bayesian kriging (EBK), pollution level analyses, and modified HHRA modeling. The concentrations of copper industry-related metals (Cu, Ni, Cd, As, and Hg) in 332 topsoil samples from the south bank of the Yangtze River in Tongling were investigated. Obvious enrichment of Cu, Cd, As, and Hg was detected, and the average concentration of Cu was 5.24 times higher than the background values. The distribution of heavy metal(loid) pollution was typically high in the south and east, and low in the north and west. The mean errors of interpolation for Cu, Ni, and Hg were 0.84, 1.29, and 0, respectively, and the root mean square errors of interpolation for Cd and As were 1.29 and 0.86, respectively. Non-carcinogenic risks of soil heavy metal(loid)s were assessed as acceptable throughout the studied area. The hazard index decreased in the order As (0.448) > Ni (0.0729) > Cd (0.0136) > Hg (9.04 x10-4) > Cu (6.41 x10-4). Nevertheless, the carcinogenic risks of Ni, Cd, and As in 70-80% of the adminis-trative units (AUs) were between 10-6 to 10-4, considered an unacceptable level. Exposure through the oral ingestion route accounted for 88.0-99.2% of the total three exposure routes. It is worth noting that four AUs were considered to be the priority control units, and Ni and As were identified as the priority control soil heavy metal (loid)s. This case demonstrates the feasibility and scientific validity of the new EBK-HHRA framework, which confirms that EBK can effectively predict the spatial distribution patterns of soil heavy metal(loid)s and that modified HHRA models are conducive to risk integration at the regional scale. The EBK-HHRA approach is generic and provides substantial support for risk source identification and risk management of soil heavy metal (loid)s contamination at the regional scale.
内容类型	期刊论文
源URL	[http://210.75.249.4/handle/363003/61649]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Wang, Liting,Liu, Renzhi,Liu, Jing,et al. A novel regional-scale human health risk assessment model for soil heavy metal(loid) pollution based on empirical Bayesian kriging[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2023,258.
APA	Wang, Liting,Liu, Renzhi,Liu, Jing,Qi, Yushun,Zeng, Weihua,&Cui, Baoshan.(2023).A novel regional-scale human health risk assessment model for soil heavy metal(loid) pollution based on empirical Bayesian kriging.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,258.
MLA	Wang, Liting,et al."A novel regional-scale human health risk assessment model for soil heavy metal(loid) pollution based on empirical Bayesian kriging".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 258(2023).