Authors
Md Saiful Islam, Md Kawser Ahmed, Mohammad Raknuzzaman, Md Habibullah-Al-Mamun, Shigeki Masunaga
Publication date
2015/1/1
Journal
Archives of environmental contamination and toxicology
Volume
68
Issue
1
Pages
92-106
Publisher
Springer US
Description
Six trace metals (chromium [Cr], nickel [Ni], copper [Cu], arsenic [As], cadmium [Cd] and lead [Pb]) were measured in sediments and soft tissues of three commonly consumed fish species (Channa punctatus, Heteropneustes fossilis, and Trichogaster fasciata) collected from three urban rivers around Dhaka City, Bangladesh. The abundance of total metals in sediments varied in the decreasing order of Cr > Ni > Pb > Cu > As > Cd. Sequential extraction tests showed that the studied metals were predominantly associated with the residual fraction followed by the organically bound phase. The range of metal concentration in fish species were as follows: Cr (0.75–4.8), Ni (0.14–3.1), Cu (1.1–7.2), As (0.091–0.53), Cd (0.008–0.13), and Pb (0.052–2.7 mg/kg wet weight [ww]). The rank of biota-sediment accumulation factor for fish species were in the descending order of Cu > As > Pb > Ni > Cr > Cd. Metal …
Scholar articles
MS Islam, MK Ahmed, M Raknuzzaman… - Archives of environmental contamination and …, 2015