干旱区生态环境知识资源中心(Arid): Probabilistic risk assessment of heavy metals in urban farmland soils of a typical oasis city in northwest China

Arid

DOI	10.1016/j.scitotenv.2022.155096
	Probabilistic risk assessment of heavy metals in urban farmland soils of a typical oasis city in northwest China
	Guan, Qingyu; Liu, Zhan; Shao, Wenyan; Tian, Jing; Luo, Haiping; Ni, Fei; Shan, Yuxin
通讯作者	Guan, QY
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2022
卷号	833
英文摘要	Previous studies lacked quantitative evaluation studies of the probability of ecology and human health risks from soil heavy metals. This study assessed heavy metal risk level by collecting topsoil samples from a typical oasis city (Wuwei) in northwest China and then quantitatively evaluating the ecological risk from heavy metals by incorporating the uncertainty of health risk model parameters into the risk assessment. This study found that anthropogenic activities have influenced the accumulation of heavy metals in the study area and that the risk of contamination of soil heavy metals was characterized as light to moderate contamination and low ecological risk. On this basis, the species sensitivity distribution curves of heavy metals were constructed using species acute toxicity data, the predicted no effect concentrations of heavy metals were derived, and a probabilistic ecological risk evaluation was conducted. The results show that the current soil environmental quality standards in China are not effective in protecting species diversity. In addition, the probability of ecological risk for Cr, Ni and As in the study area was 63.3%, 23.8% and 7.1%, however, traditional pollution assessment methods underestimate the hazard of Cr. Monte Carlo simulations have shown that the probability of the carcinogenic risk of Cr (adults: 79.4%;children: 94.5%) and As (adults: 78.9%; children: 94.0%) is high, the probability of the total carcinogenic risk exceeding 1E-06 is 99.0%, the probability of the non-carcinogenic risk is low, and the slope factor and reference dose can significantly affect the evaluation of human health risks.
英文关键词	Wuwei Oasis Agricultural soils Heavy metals Probabilistic ecological risk Probabilistic health risk
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000805772900006
WOS关键词	GEOCHEMICAL BASE-LINE ; POLYCYCLIC AROMATIC-HYDROCARBONS ; NO-EFFECT CONCENTRATIONS ; WATER QUALITY CRITERIA ; ECOLOGICAL RISK ; HEALTH-RISK ; SOURCE APPORTIONMENT ; AGRICULTURAL SOILS ; SPATIAL-DISTRIBUTION ; TRACE-ELEMENTS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394377
推荐引用方式 GB/T 7714	Guan, Qingyu,Liu, Zhan,Shao, Wenyan,et al. Probabilistic risk assessment of heavy metals in urban farmland soils of a typical oasis city in northwest China[J],2022,833.
APA	Guan, Qingyu.,Liu, Zhan.,Shao, Wenyan.,Tian, Jing.,Luo, Haiping.,...&Shan, Yuxin.(2022).Probabilistic risk assessment of heavy metals in urban farmland soils of a typical oasis city in northwest China.SCIENCE OF THE TOTAL ENVIRONMENT,833.
MLA	Guan, Qingyu,et al."Probabilistic risk assessment of heavy metals in urban farmland soils of a typical oasis city in northwest China".SCIENCE OF THE TOTAL ENVIRONMENT 833(2022).