investigation of pahs in tissues of c.cultriventris caspia in coastal area of guilan ( anzali port)

in the present study common kilka from guilan province coastal area (port of anzali) and fish meal produced from it, have been examined to investigate the type and amount of polyaromatic hydrocarbons (pahs). bio monitoring is very important because these pollutants are carcinogenic and mutagenic compounds, if they enter human food chain. sampling process was completed in anzali fishing port. for sampling 2 kg of fishes randomly selected and sent to laboratory for biometric experiments including fork length (cm), weight (g) and age (year) by inner ear otolith method. for determining pah's frozen samples were eventually sent to laboratory. hplc was used and a total 16 pah's in epa table were determined. for 3 year old fish, the compounds found were: naphthalene, indeno (1,2,3…cd) pyrene, pyrene, fluorene, anthracene and dibanzo (ah) anthracene with quantities of 90.67, 19.75, 8.42, 5.93, 3.30 and 0.37 (ppb), respectively. for 5 year old fish the pahs were naphthalene, indeno(1,2,3…cd)pyrene and fluorene found with quantities of 74, 14.25 3.96 (ppb), respectively, while for 7 year old one no pahs were found. the results also showed that pahs amounts in tissues of kilka are fortunetly below the standard levels.