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8599949 
Journal Article 
Bioaccumulation and Biomagnification of Heavy Metals and Organochlorine Pesticides in Benthic Macro-invertebrates from River Yamuna 
Sharma, HR; Trivedi, RC; Gupta, A 
2000 
Chk 
Indian Journal of Environmental Protection
ISSN: 0253-7141 
Kalpana Corporation 
20 
9 
674-680 
English 
This study was conducted to examine the concentration and biomagnification of heavy metals and organochlorine pesticides in the benthic macro invertebrates (biota) collected from 12 different stations of river Yamuna from Hethnikund to Juhika (U.P.) during pre - monsoon period in 1996. The concentration of cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), nickel (Ni), lead (Pb) and zinc (Zn) was ranged between non - traceable (nt) to 37.0, 8.5 to 56.6, nt to 122.0, 281.0 to 3556.0, nt to 341.0, nt to 66.0 and 54.0 to 822.0 μg/gm dry weight (dw), respectively. While that of organochlorine pesticides, namely BHC, aldrin, endosulphan, dieldrin and DDT ranged between nt to 1889.0, nt to 1876.95, nt to 6391.81, NT to 2257.34 and nt to 11555.0 ηg/gm dw, respectively.