Investigate of accumulation the heavy metals Cd, Pb, and Zn in liver and muscle tissues

Investigate of accumulation the heavy metals Cd, Pb, and Zn in liver and muscle tissues Capoeta trutta fish from Dez River, southwest Iran 

1. Cd, Pb and Zn concentrations were determined in muscle and liver of  Capoeta trutta  collected from northern Khuzestan province from Dez River (southwest of Iran) during March, 2012. Heavy metal concentrations varied significantly  depending  on  the  type  of  the  tissue.  Generally,  showed  the  lowest  levels  of  Cd  and  Pb  and  Zn metals  in  muscle  tissues.  Significant  differences  were  observed  in  the  concentrations  of  Pb  and  Zn,  but nosignificant differences  were observed  between the  concentration of  Cd  in muscle tissue  and the liver.  It was concluded  that  the  level  of  Zn  heavy  metals  in  muscles  and  liver  of  the  fish  were  within  acceptable  limits  by WHO  standards  but  concentration  of  Cd  and  Pb  higher  than  acceptable  limits  by  WHO  standard.  The  main reason for pollution entering the agricultural and domestic effluents to the river.