Survey of 2,3,7,8-tetrachlorodibenzo-p-dioxin in fish from the Great Lakes and selected Michigan rivers
Journal Article
·
· J. Agric. Food Chem.; (United States)
Fish from the Great Lakes region and selected Michigan rivers were analyzed for residues of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) by using combinations and modifications of published methods. Portions of homogenates of skinless fish fillets were digested in ethanolic KOH and TCDD was extracted with hexane. TCDD was separated from coextractives by passing through a silica gel supported sulfuric acid column followed by collecting the TCDD fraction of the eluate from three high-performance liquid chromatographic systems. Capillary gas chromatography (HRGC) with electron capture (EC) detection was used for residue screening. Residues found by HRGC-EC were confirmed by HRGC low-resolution mass spectrometry by using a 12-ion monitoring scheme. Fish from Saginaw Bay (Lake Huron), the Tittabawassee River in Michigan, and Lake Ontario contained the highest levels of contamination. No TCDD residues at or above the minimum confirmable level of 10 ppt were found in fish from Michigan rivers other than the Tittabawassee.
- Research Organization:
- Pesticide and Industrial Chemical Research Center, Detroit, MI
- OSTI ID:
- 7119893
- Journal Information:
- J. Agric. Food Chem.; (United States), Journal Name: J. Agric. Food Chem.; (United States) Vol. 33:6; ISSN JAFCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ANIMALS
AQUATIC ORGANISMS
AROMATICS
BIOLOGICAL ACCUMULATION
CHEMICAL ANALYSIS
CHLORINATED AROMATIC HYDROCARBONS
CHROMATOGRAPHY
CONTAMINATION
DIOXIN
FEDERAL REGION V
FISHES
GAS CHROMATOGRAPHY
GREAT LAKES
HALOGENATED AROMATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
LAKES
MEASURING METHODS
MICHIGAN
MONITORING
NORTH AMERICA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
POLLUTION
RIVERS
SEPARATION PROCESSES
STREAMS
SURFACE WATERS
USA
VERTEBRATES
WATER POLLUTION
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ANIMALS
AQUATIC ORGANISMS
AROMATICS
BIOLOGICAL ACCUMULATION
CHEMICAL ANALYSIS
CHLORINATED AROMATIC HYDROCARBONS
CHROMATOGRAPHY
CONTAMINATION
DIOXIN
FEDERAL REGION V
FISHES
GAS CHROMATOGRAPHY
GREAT LAKES
HALOGENATED AROMATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
LAKES
MEASURING METHODS
MICHIGAN
MONITORING
NORTH AMERICA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
POLLUTION
RIVERS
SEPARATION PROCESSES
STREAMS
SURFACE WATERS
USA
VERTEBRATES
WATER POLLUTION