Contamination Level, Ecological Risk, and Source Identification of Heavy Metals in the Hyporheic Zone of the Weihe River, China

被引：105

作者：

Ahamad, Muhammad Irfan ^{[1
,2
]}

Song, Jinxi ^{[1
,2
,3
]}

Sun, Haotian ^{[1
,2
]}

Wang, Xinxin ^{[1
,2
]}

Mehmood, Muhammad Sajid ^{[1
]}

Sajid, Muhammad ^{[4
,5
]}

Su, Ping ^{[1
,2
]}

Khan, Asif Jamal ^{[1
,2
]}

机构：

[1] Northwest Univ, Coll Urban & Environm, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian 710127, Peoples R China

[2] Northwest Univ, Inst Qinling Mt, Xian 710127, Peoples R China

[3] Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China

[4] Tsinghua Univ, Dept Chem Engn, Inst Appl Chem, Key Lab Ind Biocatalysis,Minist Educ China, Beijing 100084, Peoples R China

[5] Univ Gujrat, Dept Chem Engn, Gujrat 50700, Pakistan

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH | 2020年 / 17卷 / 03期

基金：

中国国家自然科学基金;

关键词：

sediments; heavy metals; geo-accumulation index; potential ecological risk; Weihe River; SEDIMENT QUALITY ASSESSMENT; SURFACE SEDIMENTS; TRACE-METALS; SPATIAL VARIATIONS; YELLOW-RIVER; URBAN RIVER; WATER; POLLUTION; ELEMENTS; ESTUARY;

D O I：

10.3390/ijerph17031070

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The sediment pollution caused by different metals has attracted a great deal of attention because of the toxicity, persistence, and bio-accumulation. This study focuses on heavy metals in the hyporheic sediment of the Weihe River, China. Contamination levels of metals were examined by using "geo-accumulation index, enrichment factor, and contamination factor" while ecological risk of metals were determined by "potential ecological risk and risk index". The pollutant accumulation of metals ranked as follows: "manganese (Mn) > chromium (Cr) > zinc (Zn) > copper (Cu) > nickel (Ni) > arsenic (As) > lead (Pb)". The geo-accumulation index identified arsenic as class 1 (uncontaminated to moderate contamination), whereas Cu, Cr, Ni, Zn, Pb, and Mn were classified as class 0 (uncontaminated). According to the enrichment factor, arsenic originated through anthropogenic activities and Cr, Ni, Cu, Zn, and Pb were mainly controlled by natural sources. The contamination factor elucidated that sediments were moderately polluted by (As, Cr, Cu, Zn, Mn, and Pb), whereas Ni slightly contaminated the sediments of the Weihe River. All metals posed a low ecological risk in the study area. The risk index revealed that contribution of arsenic (53.43 %) was higher than half of the total risk.

引用

页数：17

共 85 条

[1] Cryptic footprints of rare earth elements on natural resources and living organisms [J].