Distribution and ecological risk assessment of heavy metals in the sediments of Changli ecological monitoring area, northwest of Bohai Bay, China

被引:7
作者
Wang, Qianqian [1 ]
Duan, Weiyan [2 ]
Yao, Xiaomeng [1 ]
Guo, Xiaonan [1 ]
Liu, Dongyang [1 ]
Gao, Weiming [1 ]
Zhang, Jianda [1 ]
机构
[1] Hebei Normal Univ, Coll Geog Sci, Key Lab Environm Evolut & Ecol Construct Hebei Pr, Hebei Technol Innovat Ctr Remote Sensing Identifi, Shijiazhuang, Hebei, Peoples R China
[2] Hebei Agr Univ, Ocean Coll, Qinhuangdao, Hebei, Peoples R China
基金
中国国家自然科学基金;
关键词
Heavy metals; sediments; geochemical speciation; risk assessment; Bohai Bay; SURFACE SEDIMENTS; MARINE-SEDIMENTS; CONTAMINATION ASSESSMENT; POLLUTION ASSESSMENT; RIVER ESTUARY; LUANHE RIVER; TRACE-METAL; SPECIATION; FRACTIONATION; QUALITY;
D O I
10.1080/26395940.2022.2069599
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The concentrations of six heavy metals were determined in the sediments of the Changli ecological monitoring area, northwest of the Bohai Bay. The spatial distribution of the metals was discussed, and the ecological risk was evaluated using the potential ecological risk index (PERI) and secondary phase enrichment factor (K-SPEF ). The content ranges of Cu, Pb, Cd, Cr, Ni, and Zn were 1.38-25.78, 11.13-21.96, 0.12-0.54, 15.44-120.60, 0.48-57.11, and 44.21-156.38 mg center dot kg(-1), respectively. Based on the results of the geochemical speciation analysis, the residual phase was the main form for all five metals (Cu, Pb, Cd, Cr, and Zn). Compared to the assessment results of K-SPEF, PERI is more suitable for the pollution evaluation of heavy metals. The results indicated that all the sediments pose a moderate to considerable level of risk, except site S14 (low risk), and Cd was found to be the main contributor of the ecological risk due to heavy metals.
引用
收藏
页码:180 / 189
页数:10
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