原文服务方: 地球化学学报(英文)       
摘要:
Lake contamination by anthropogenic activities has become a serious threat to the aquatic ecosystem due to the presence of a high concentration of toxic heavy metals. In this study, a contaminated Lake Hussain Sagar in India was assessed for toxic heavy metal pollutants at sites associated with industrial discharges and idol immersion activities. The observed high concentration of As, Cd, Pb, Zn, Cu, and Ni in the surface water was due to industrial effluent discharge. About 1.5 times the high concentration of the same elements were observed in surface sediments (0-10 cm) by both industrial discharges and idol immersion activities, compared to deep sediments (0-40 cm) associated only with industrial discharge. The depth-wise variation of heavy metal concentration in surface sediments is due to sorption and settling behavior of suspended solids; whereas in deep sediment, it is due to constant loading of effluents, over a period of time. The sorption capacity of surface sediments is in increasing order as Pb > Cd ≥ Ni ≥ Cr ≥ Zn ≥ Cu, and the desorption revealed that Pb and Cu were retained to a greater extent due to high clay and organic content. By fractionation study, 20-50% of Zn and 50-80% of Cd were associated with exchangeable and carbonate fraction of sediments. By risk assessment code, Zn and Cd are classified under high risk to a very high-risk category, and Cr, Pb, Ni, and Cu are classified under the medium risk category. The enrichment factor value of sediments for Cd (20.42-119.48), Zn (2.19-4.85), Cu (2.02-3.19), and Pb (2.85-7.72) signifies the significant pollution by anthropogenic activities. Therefore, this study evaluates the intensity and distribution of heavy metals in the lake environment for remediation and restoration of the lake ecosystem.
推荐文章
Geochemical distribution, fractionation, and sources of heavy metals in dammed-river sediments: the
Heavy metals
Fractionation
210Pb dating
Smelting and mining activities
Sediment cores
The Longjiang River
Distribution and partitioning of heavy metals in large anthropogenically impacted river, the Pearl R
Pearl River
Water and sediment
Heavy metals
Partitioning
Distribution
Ecological risk assessment of surficial sediment by heavy metals from a submerged archaeology harbor
Heavy metals
Eastern harbor
Enrichment factors
Degree of contamination
Potential ecological risk
Bioavailability of heavy metals in soil of the Tieguanyin tea garden, southeastern China
Geo-accumulation index
Tieguanyin tea garden
Heavy metals
Bioavailability
Dilute nitric acid extraction
Southeastern China
内容分析
关键词云
关键词热度
相关文献总数  
(/次)
(/年)
文献信息
篇名 Distribution and ecological risks of heavy metals in Lake Hussain Sagar, India
来源期刊 学科 地球科学
关键词 Trace metals Lake sediment Geochemistry Speciation Industrial effluents Idol immersion
年,卷(期) 2022,(2) 所属期刊栏目
研究方向 页码范围 255-270
页数 15页 分类号
字数 语种 英文
DOI 10.1007/s11631-019-00360-y
五维指标
传播情况
(/次)
(/年)
引文网络
引文网络
二级参考文献  (0)
共引文献  (0)
参考文献  (0)
节点文献
引证文献  (0)
同被引文献  (0)
二级引证文献  (0)
2022(0)
  • 参考文献(0)
  • 二级参考文献(0)
  • 引证文献(0)
  • 二级引证文献(0)
研究主题发展历程
节点文献
Trace metals
Lake sediment
Geochemistry
Speciation
Industrial effluents
Idol immersion
研究起点
研究来源
研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
地球化学学报(英文)
双月刊
2096-0956
52-1161/p
16开
贵阳市林城西路99号
1982-01-01
英语
出版文献量(篇)
230
总下载数(次)
0
总被引数(次)
0
期刊文献
相关文献
推荐文献
论文1v1指导