Historical Characteristics of Contamination and Risk of Heavy Metals in Weishan Lake, China

被引：2
作者：
Sun, Lihua [1 ]
Guo, Wei [2 ]
Wang, Shujuan [2 ]
Ma, Lekuan [3 ]
机构：
[1] Beijing Univ Civil Engn & Architecture, Key Lab Urban Stromwater Syst & Water Environm, Beijing 100044, Peoples R China
[2] North China Elect Power Univ, Sch Environm Sci & Engn, Beijing 102206, Peoples R China
[3] Chinese Acad Envirormental Planning, Beijing 100012, Peoples R China
来源：
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY | 2017年 / 98卷 / 06期
基金：
北京市自然科学基金;
关键词：
Heavy metals; Historical records; Enrichment factor; Ecological risk; Weishan Lake; POTENTIAL ECOLOGICAL RISK; SPATIAL-DISTRIBUTION; SEDIMENTARY RECORD; TRACE-METALS; NANSI LAKE; POLLUTION; RIVER; WATER; CORE;
D O I：
10.1007/s00128-017-2073-y
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Combined with the dating analysis of Pb-210 and Cs-137, the historical concentration and risk of As, Cd, Cr, Cu, Hg, Ni, Pb and Zn in the core sediment of Weishan Lake were determined. Pollution concentrations, enrichment factor, geo-accumulation index, and ecological risk index of these metals and C/N ratio indicate that the natural inputs prevailed till early 1900s. From late 1970s onwards, the risk posed by these metals was significantly increased. Cu and Hg might cause adverse biological effects. The increase of soil erosion and wastewater discharge in the watershed promoted input and accumulation of these metals in the lake. The coal and petroleum industry in the catchment led the more accumulation of Hg, Cd and Cu in the lake.
引用
收藏
页码：776 / 783
页数：8
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