The amount and identity of carbon 14 residues in bluegills lepomis macrochirus exposed to carbon 14 triclopyr

Lickly, T.D.; Murphy, P.G.

Environment International 13(2): 213-218

1987


ISSN/ISBN: 0160-4120
DOI: 10.1016/0160-4120(87)90092-4
Accession: 006599596

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Abstract
The level and identity of [14C] residues in bluegills (Lepomis macrochirus) exposed to 2.5 mg/L [14C] triclopyr (3,5,6-trichloro-2-pyridinyloxyacetic acid) have been determined. The highest level of radioactivity observed in the flesh of a fish at any time point (0.13 mg/kg, calculated as equivalent mg triclopyr/kg fish) was less than 5% of the fish exposure level of 2.5 mg/L, while the maximum level in the remainder (head, skin, and viscera) was about 95% (2.33 mg/kg) of the fish exposure level, indicating no concentrating effect. The principal components observed in the fish tissues were triclopyr, 3,5,6-trichloro-2-pyridinol, 2-methoxy-3,5,6-trichloropyridine and a conjugate. These components accounted for greater than 75% of all the residues observed.