New Data on Organochlorine Pollutants in the Subcutaneous Fat of the Black Sea Cetaceans
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Abstract
The data on the content of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in the subcutaneous fat layer of the Black Sea dolphins - bottlenose dolphins, white stallions and porpoises (Azovka) thrown on the Crimean coast in 2017 are presented. In all studied samples, α-, β-, and γ-HCH were detected in the concentration range from 0.003 to 264 (∑HCH from 0.036 to 0.319); hexachlorobenzene - from 0.12 to 8.14; p, p’-DDT and its metabolites p, p’-DDE and p, p’-DDD - from 0.08 to 146.95 (DDT from 27 to 163.18); and six polychlorinated biphenyls congeners (according to IUPAC: 28, 52, 101, 138, 153, and 180) - from 0.004 to 11.28 (∑PHB6 from 0,, 42 to 27.04) µg g – 1 lipid mass. The proportion of n, p’-DDE ranged from 44 to 90% the total OCP and reached 146.95 μg g – 1 lipid mass. The maximum concentration of OCPs and PCBs was recorded in the samples of subcutaneous fat of the common dolphins (Delphinus delphis ponticus BarabaschNikiforov, 1935).
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References
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