title: [Transportation and risk assessment of heavy metal pollution in water-soil from the Riparian Zone of Daye Lake, China].
abstract: Each 20 water samples and soil samples (0-10 cm, 10-20 cm) were collected from the riparian zone of Daye Lake in dry season during March 2013. Heavy metals (Cu, Ph, Cd, Zn) have been detected by flame atomic absorption spectrometric (FAAS). The results showed that the average concentrations of Cu, Pb, Cd, Zn in the water were 7.14, 25.94, 15.72 and 37.58 microg x L(-1), respectively. The concentration of Cu was higher than the five degree of the surface water environment quality standard. The average concentrations of Cu, Pb, Cd, Zn in soil(0-10 cm) were 108.38, 53.92, 3.55, 139.26 mg x kg(-1) in soil (10-20 cm) were 93.00, 51.72, 2.08, 171.00 mg x kg(-1), respectively. The Cd concentrations were higher than the three grade value of the national soil environment quality standard. The transportation of Pb from soil to water was relatively stable, and Zn was greatly influenced by soil property and the surrounding environment from soil to water. The transformation of heavy metal in west riparian zone was higher than that of east riparian zone. The potential environmental risk was relatively high. Cu, Pb, Cd, Zn were dominated by residue fraction of the modified BCR sequential extraction method. The overall migration order of heavy metal element was: Pb > Cu > Cd > Zn. There were stronger transformation and higher environmental pollution risk of Cu, Pb. The index of assessment and potential ecological risk coefficient indicated that heavy metal pollution in soil (0-10 cm) was higher than the soil (10-20 cm), Cd was particularly serious.
authors.forename: Jia-quan
authors.initials: JQ
authors.lastname: Zhang
authors.forename: Xiu
authors.initials: X
authors.lastname: Li
authors.forename: Quan-fa
authors.initials: QF
authors.lastname: Zhang
authors.forename: Qiong
authors.initials: Q
authors.lastname: Li
authors.forename: Wen-sheng
authors.initials: WS
authors.lastname: Xiao
authors.forename: Yong-kui
authors.initials: YK
authors.lastname: Wang
authors.forename: Jian-chun
authors.initials: JC
authors.lastname: Zhang
authors.forename: Xi-guang
authors.initials: XG
authors.lastname: Gai
mesh_terms: D002681:China; D004784:Environmental Monitoring; D060106:Lakes; D019216:Metals, Heavy / Q000032:analysis*; D018570:Risk Assessment; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis*; D013054:Spectrophotometry, Atomic; D014867:Water / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D019216:Metals, Heavy; D012987:Soil; D012989:Soil Pollutants; D014874:Water Pollutants, Chemical; D014867:Water