title: Ecological risk assessment of heavy metals in soils surrounding oil waste disposal areas.
abstract: More attention is being devoted to heavy metal pollution because heavy metals can concentrate in higher animals through the food chain, harm human health and threaten the stability of the ecological environment. In this study, the effects of heavy metals (Cu, Cr, Zn, Pb, Cd, Ni and Hg) emanating from oil waste disposal on surrounding soil in Jilin Province, China, were investigated. A potential ecological risk index was used to evaluate the damage of heavy metals and concluded that the degree of potential ecological damage of heavy metals can be ranked as follows: Hg > Cd > Pb > Cu > Ni > Cr > Zn. The average value of the potential ecological harm index (Ri) is 71.93, thereby indicating light pollution. In addition, this study researched the spatial distribution of soil heavy metals by means of ArcGIS (geographic information system) spatial analysis software. The results showed that the potential ecological risk index (R) of the large value was close to the distance from the oil waste disposal area; it is relatively between the degree of heavy metals in soil and the distance from the waste disposal area.
authors.affiliation: State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, 130117, Changchun, People's Republic of China. xujl@foxmail.com.
authors.forename: Jianling
authors.initials: J
authors.lastname: Xu
authors.affiliation: State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, 130117, Changchun, People's Republic of China. wanghanxizs1982@126.com.
authors.forename: Hanxi
authors.initials: H
authors.lastname: Wang
authors.affiliation: State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, 130117, Changchun, People's Republic of China.
authors.forename: Yuanyuan
authors.initials: Y
authors.lastname: Liu
authors.affiliation: State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, 130117, Changchun, People's Republic of China.
authors.forename: Mengchao
authors.initials: M
authors.lastname: Ma
authors.affiliation: State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, 130117, Changchun, People's Republic of China.
authors.forename: Tian
authors.initials: T
authors.lastname: Zhang
authors.affiliation: State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, 130117, Changchun, People's Republic of China.
authors.forename: Xiaoxue
authors.initials: X
authors.lastname: Zheng
authors.affiliation: State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, 130117, Changchun, People's Republic of China.
authors.forename: Meihan
authors.initials: M
authors.lastname: Zong
mesh_terms: D002681:China; D004463:Ecology; D004784:Environmental Monitoring; D019216:Metals, Heavy / Q000032:analysis*; D059392:Petroleum Pollution / Q000032:analysis*; D012037:Refuse Disposal; D018570:Risk Assessment; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis*
chemical_list: D019216:Metals, Heavy; D012987:Soil; D012989:Soil Pollutants
keywords: ArcGIS; Ecological risk assessment; Heavy metals; Oil waste; Spatial distribution
references.citation: Bull Environ Contam Toxicol. 2008 Mar;80(3):206-10
references.pmid: 18193140
references.citation: J Environ Manage. 2006 Apr;79(2):133-9
references.pmid: 16171935
references.citation: Environ Monit Assess. 2009 Jan;148(1-4):61-74
references.pmid: 18202901
references.citation: Environ Geochem Health. 2008 Feb;30(1):45-52
references.pmid: 17610027
references.citation: Fresenius J Anal Chem. 2001 Dec;371(8):1057-62
references.pmid: 11798097