Heavy metals in sediment and their accumulation in commonly consumed fish species in Bangladesh

被引:35
|
作者
Islam, Md Saiful [1 ,2 ]
Ahmed, Md Kawser [3 ]
Habibullah-Al-Mamun, Md [1 ,4 ]
机构
[1] Yokohama Natl Univ, Fac & Grad Sch Environm & Informat Sci, Yokohama, Kanagawa, Japan
[2] Patuakhali Sci & Technol Univ, Dept Soil Sci, Dumki, Patuakhali, Bangladesh
[3] Univ Dhaka, Dept Oceanog, Dhaka, Bangladesh
[4] Univ Dhaka, Dept Fisheries, Dhaka, Bangladesh
关键词
Bangladesh; bioaccumulation; fish; health risk; metal pollution; sediment; HUMAN HEALTH-RISK; SURFACE SEDIMENTS; TRACE-METALS; MEDITERRANEAN SEA; URBAN RIVERS; SOUTH CHINA; WATER; POLLUTION; BIOACCUMULATION; FRACTIONATION;
D O I
10.1080/19338244.2016.1152946
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Six heavy metals (chromium [Cr], nickel [Ni], copper [Cu], arsenic [As], cadmium [Cd], and lead [Pb]) were measured in sediments and soft tissues of eleven commonly consumed fish species collected from an urban river in the northern part of Bangladesh. The abundance of heavy metals in sediments varied in the decreasing order of Cr > Ni > Cu > Pb > As > Cd. The ranges of mean metal concentrations in fish species, in mg/kg wet weight (ww), were as follows: Cr, 0.11-0.46; Ni, 0.77-2.6; Cu, 0.57-2.1; As, 0.43-1.7; Cd, 0.020-0.23; and Pb, 0.15-1.1. Target hazard quotients (THQs) and target carcinogenic risk (TR) showed the intake of As and Pb through fish consumption were higher than the recommended values, indicating the consumption of these fish species is associated with noncarcinogenic and carcinogenic health risks.
引用
收藏
页码:26 / 38
页数:13
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