Incidence and levels of 2,3,7,8-tetrachlorodibenzo-p-dioxin in Lake Ontario commercial fish

Journal Article · Sat Sep 01 04:00:00 EDT 1984 · Environ. Sci. Technol.; (United States)

DOI:https://doi.org/10.1021/es00127a015· OSTI ID:6303967

Ryan, J J; Lau, P Y; Pilon, J C; Lewis, D; McLeod, H A; Gervals, A

Analysis of commercial fish taken in 1980 mostly from one area of Lake Ontario was undertaken to obtain information on the levels and incidence of the contaminant 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). Sixty-two (62) samples of fish comprising 10 different species were analyzed by using a validated extraction, cleanup, and detection procedure. Seven of the 10 species contained measurable levels of the isomer, 2,3,7,8-TCDD, between 2 and 39 parts per trillion (ppt) with five samples above 20 ppt. Channel catfish, American eel, and rainbow smelt had the highest values, and the lowest levels were found in rock bass, black crappie, and pumpkinseed. The presence of high levels of PCB (> 1 ppm) and a high lipid content (> 3 %) indicated a high probability of dioxin contamination. Comparison of this data with those generated by other laboratories from all the Great Lakes indicated that the larger species of commercial fish such as channel catfish and carp particularly from Lake Ontario and part of Lake Huron have the highest levels and incidence of 2,3,7,8-TCDD.

• Research Organization: Health and Welfare Canada, Ottawa, Ontario
• OSTI ID: 6303967
• Journal Information: Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 18:9; ISSN ESTHA
• Country of Publication: United States
• Language: English

Related Subjects

560305* -- Chemicals Metabolism & Toxicology-- Vertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AQUATIC ORGANISMS
AROMATICS
BIOLOGICAL ACCUMULATION
CHEMICAL ANALYSIS
CHLORINATED AROMATIC HYDROCARBONS
DATA
DIOXIN
EXPERIMENTAL DATA
FISHES
GREAT LAKES
HALOGENATED AROMATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
INFORMATION
INTERLABORATORY COMPARISONS
LAKE ONTARIO
LAKES
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
POLLUTION
SURFACE WATERS
VERTEBRATES
WATER POLLUTION