Anthropogenic effect on heavy metal contents in surface sediments of the Bengal Basin river system, Bangladesh

被引：23

作者：

Khan, Md Hafijur Rahaman ^{[1
,2
]}

Liu, Jianguo ^{[1
,3
]}

Liu, Shengfa ^{[3
,4
]}

Li, Jingrui ^{[3
,4
]}

Cao, Li ^{[1
,2
]}

Rahman, Ananna ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Ocean & Marginal Sea Geol, Guangzhou 510301, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China

[4] Minist Nat Resources, Inst Oceanog 1, Qingdao 266061, Peoples R China

来源：

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2020年 / 27卷 / 16期

关键词：

Heavy metals; Contamination; Surface sediments; Bengal Basin; Ganges-Brahmaputra river system; TRACE-ELEMENTS; SPATIAL-DISTRIBUTION; SURFICIAL SEDIMENTS; RISK-ASSESSMENT; PARTICLE-SIZE; GANGES; CONTAMINATION; BRAHMAPUTRA; BAY; POLLUTION;

D O I：

10.1007/s11356-020-08470-4

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Heavy metals (Sc, Cr, Co, Ni, Cu, Ga, Ge, Nb, Mo, Cd, In, Hf, Ta, W, Tl, Pb, Bi, Th, and U) in the surface sediments of the Ganges-Brahmaputra-Meghna (GBM) river system of the Bengal Basin (BB) were measured to evaluate the heavy metal contamination and anthropogenic influence. The average concentration levels of most of the heavy metals (except Mo and Tl) were above the average crustal and shale values. Contamination indices, including the contamination factor, pollution load index, enrichment factor, and geo-accumulation index, and multivariate statistical analyses indicated that the GBM is slightly polluted by heavy metals with some considerable pollution from Bi, Th, Ta, Cd, Nb, Pb, In, and U. Among the four individual rivers, the Brahmaputra River and Ganges-Brahmaputra (GB) confluence river sediments contain higher heavy metal concentrations than do the Ganges and Meghna Rivers, which may be caused by the effects of local municipal discharge, industrial or urban wastes, and ferry crossing activities.

引用

页码：19688 / 19702

页数：15

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