BIOVAVILABILITY OF CHLORINATED DIBENZO-p-DIOXINS AND DIBENZOFURANS TO DUNGENESS CRAB(CANCER MAGISTER)AT MARINE PULP MILL SITES IN BRITISH COLUMBIA, CANADA

摘要

Synchronous samples of sediment and Dungeness crad(Cancer magister)hepatopancreas, which were obtained for monitoring and assessment purposed at British Columbia, Canada pulp mill sites between 1990 and 1995, were used to calculate biota-sediment accumulation factors(BSAFs)for individual chlorinated dibenzo-p-dioxin and dibenzofuran congeners (PCDD/Fs). The BSAFs for individual pairs of samples were highly variable, and no systematic trends were apparent in the observed accumulation factors over time, with crab size, with crab lipid concentration, with sediment percent organic carbon, or among mill sites or depositional environments.