Heptachlor epoxide in marine mammals
In: Science of the Total Environment. Elsevier: Amsterdam. ISSN 0048-9697; e-ISSN 1879-1026, meer
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| Trefwoorden |
Biological phenomena > Accumulation > Bioaccumulation
Pesticides
Lagenorhynchus albirostris Gray, 1846 [WoRMS]; Phoca vitulina Linnaeus, 1758 [WoRMS]
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| Auteurs | | Top |
- Kerkhoff, M.A.T.
- de Boer, J., meer
- Geerdes, J.
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| Abstract |
The presence of heptachlor epoxide in harbour seals (Phoca vitulina) and white-beaked dolphins (Lagenorhynchus albirostris) has been confirmed by chemical derivatization and mass spectrometric analyses. An unknown compound at a retention time close to that of heptachlor epoxide interfered in the determination by electron capture detector-gas chromatography. On a WCOT CP-Sil 7 column programmed from 85 to 175 °C two poorly separated peaks could be detected. Heptachlor epoxide contents up to 1.7 mg/kg (on a fat basis) were obtained, which were about 200 times lower than the PCB levels. The same ratio was also observed in fish from the same area. |
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