Analyses of tissues of marine species for dioxin-like and total PCBs by HPLC/PDA
- NOAA/NMFS, Seattle, WA (United States). Environmental Conservation Division
During 1993--1994, eight commercially important seafood species were collected from various coastal regions of the contiguous US. Whole body of blue mussels, fish muscle and crustacean muscle and hepatopancreas were analyzed (n - 700 samples) for dioxin-like chlorobiphenyls (CBs) and other widespread and persistent chlorinated hydrocarbons (e.g., other selected CBs, DDTS) using a rapid high-performance liquid chromatography photodiode array detection (HPLC/PDA) method. Total CB concentrations and toxic equivalents (TEQs) of dioxin-like CBs were also determined. Although the nonplanar congeners were the most abundant congeners measured in the seafood tissues (concentrations ranging from 0. 1 to 1,500 ng/g, wet weight), several dioxin-like CBs (e.g., 77, 105, 118, 126) were also measured in these tissues in concentrations ranging from 0.1 to 680 ng/g, wet weight. Similar to previous studies, most seafood tissues analyzed contained total CB concentrations and TEQs of dioxin-like CBs that were well below the US FDA and Canadian action levels. However, several crustacean hepatopancreas samples from urban areas (e.g., Dungeness crab from Elliott Bay in Puget Sound, northern lobster from Deer Island in Boston Harbor) did contain total PCB and TEQ concentrations that exceeded these action limits. Dioxin-like CB congeners 105, 118, 126 and 156 were the largest contributors to the TEQs of the crab and lobster hepatopancreas samples that exceeded action limits.
- OSTI ID:
- 230844
- Report Number(s):
- CONF-9511137--; ISBN 1-880611-03-1
- Country of Publication:
- United States
- Language:
- English
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