干旱区生态环境知识资源中心(Arid): A Monte Carlo simulation-based health risk assessment of heavy metals in soils of an oasis agricultural region in northwest China

Arid

DOI	10.1016/j.scitotenv.2022.159543
	A Monte Carlo simulation-based health risk assessment of heavy metals in soils of an oasis agricultural region in northwest China
	Liu, Zhan; Du, Qinqin; Guan, Qingyu; Luo, Haiping; Shan, Yuxin; Shao, Wenyan
通讯作者	Guan, QY
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2023
卷号	857
英文摘要	In recent years, heavy metal contamination of soils has been increasing, posing a major threat to food security, human health, and soil ecosystems. This study analyzed the spatial characteristics, contamination sources, risks of heavy metals by collecting topsoil samples from farmland in an oasis agricultural region in northwest China. The results found that soil heavy metals in farmland were at a moderate contamination level. The PMF model classifies soil heavy metals as fertilizer and pesticide sources dominated by As and Mn with 27.8 %, mixed sources of transport and agricultural sources dominated by Cu, Zn, Cd and Pb with 26.9 %, metal processing sources dominated by Cr and Ni with 22.6 %, and the combined pollution sources of Ti, V, Cr, Mn, Fe, As, Pb dominated by natural sources and fuel combustion. The noncarcinogenic and carcinogenic risks values from the ingestion route were higher for children than for adults. The non-carcinogenic risk of heavy metals to adults in the southwestern and central regions of the study area was >1 x 10-4. The carcinogenic risk was >1 in all adults, but >1 in children in the central and southwestern study areas. Monte Carlo simulation takes into account the parameters and their distributions that affect the health risk assessment model by combining the uncertainty assessment with the health risk, which will reduce the uncertainty of the health risk assessment. The results showed that conventional deterministic risk assessment may overestimate health risk outcomes. In addition, As has a 1.85% probability of non-carcinogenic risk to children, and an 85.3 % probability of total non-carcinogenic risk for children for all heavy metals. 69.5 % and 11.4 % probability of carcinogenic risk for children and adults respectively for Ni, and 96.4% and 52.1 % probability of total carcinogenic risk, suggesting that Ni is a priority control heavy metal.
英文关键词	Soil heavy metals Farmland soil Source apportionment Risk assessment Monte Carlo simulation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000897151600003
WOS关键词	SOURCE APPORTIONMENT ; SOURCE IDENTIFICATION ; SURFACE SOILS ; POLLUTION CHARACTERISTICS ; MULTIVARIATE-ANALYSIS ; SPATIAL-DISTRIBUTION ; TRACE-METALS ; URBAN SOILS ; CONTAMINATION ; CITY
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/2XILL650/398476
推荐引用方式 GB/T 7714	Liu, Zhan,Du, Qinqin,Guan, Qingyu,et al. A Monte Carlo simulation-based health risk assessment of heavy metals in soils of an oasis agricultural region in northwest China[J],2023,857.
APA	Liu, Zhan,Du, Qinqin,Guan, Qingyu,Luo, Haiping,Shan, Yuxin,&Shao, Wenyan.(2023).A Monte Carlo simulation-based health risk assessment of heavy metals in soils of an oasis agricultural region in northwest China.SCIENCE OF THE TOTAL ENVIRONMENT,857.
MLA	Liu, Zhan,et al."A Monte Carlo simulation-based health risk assessment of heavy metals in soils of an oasis agricultural region in northwest China".SCIENCE OF THE TOTAL ENVIRONMENT 857(2023).