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| Title | Polychlorinated Dioxins and -Furans in Lake Roosevelt (Columbia River) Sportfish, 1990 | |||
| Month-Year Published | March 1991 | |||
| Online Availability |
3385 kilobytes, requires version 4.0 or later of Adobe Acrobat Reader Software get Acrobat Reader
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| Short Description |
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) and 2,3,7,8-tetrachlorodibenzofuran (TCDF) concentrations were measured in fillets from 51 sportfish samples collected in Lake Roosevelt and vicinity. (Also see abstract below) | |||
| Publication Number | 91-4 | |||
| Author(s) | Johnson, A., D. Serdar, and S. Magoon | |||
| Print Availability |
Not maintained in stock. Copy must be made from archive version. Request will be referred to the source program.
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| Number of pages | 66 pp. | |||
| Keywords | Columbia River, dioxin, dioxins, fish, lake, Lake Roosevelt, pulp, river, toxicity | |||
| Subject Waterbodies |
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| Abstract | Long Description |
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) and 2,3,7,8-tetrachlorodibenzofuran (TCDF) concentrations were measured in fillets from 51 sportfish samples collected in Lake Roosevelt and vicinity. Lake whitefish and white sturgeon were found to be substantially contaminated and had mean TCDD toxicity equivalents (TEQs) of 16 and 17 parts per trillion (ppt), respectively. TEQs averaged 6 ppt or less in other species which included burbot, walleye, rainbow trout, and kokanee. TCDF contributed approximately 76% of the combined toxicity estimate. These data are compared to results from a background lake and similar surveys of TCDD and TCDF in fish from the Columbia River and other U.S. freshwaters. Information is provided on the source of contamination, the Celgar bleached kraft pulp mill in Castlegar, British Columbia. |
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