Accumulation of priority pollutants in the fish of the Azov Sea over the last decade
Results of long-term studies on the accumulation of organochlorine pesticides (OCP), polychlorinated biphenyls (PCB), heavy metals and arsenic in muscles, liver and gonads of the main commercial fish species of the Azov Sea (round goby Neogobius melanostomus, zander Sander lucioperca, so-iuy mullet Planiliza haematocheila, roach Rutilus heckelii, and anchovy Engraulis encrasicholus) are presented for the period from 2009 to 2018. Evaluation of OCP, PCB, heavy metals and arsenic was carried out in accordance with the techniques developed in the Azov-Black Sea Branch of the FSBSI “VNIRO” (“AzNIIRKH”). Out of the organochlorine pesticides under investigation, only the breakdown products of dichlorodiphenyltrichloroethane (DDT), such as dichlorodiphenyldichloroethylene (DDE) and dichlorodiphenyldichloroethane (DDD), were found in the samples; the DDT was not detected. The content of hexachlorocyclohexane isomers (α-, γ-, β-HCH) in the total amount of OCP was either below the limit of determination, or insignificant (2–3 %). Out of congeners of polychlorinated biphenyls in the organs of the investigated fish, persistent and dangerous penta-, hexa- and heptachlorobiphenyls were present in different variations, among which dioxin-like congeners were found. The concentrations of OCP and PCB found in the organs of commercial fishes did not exceed the allowable levels (AL) provided by Sanitary Rules and Norms (SanPiN). Accumulation levels of heavy metals and arsenic were low, aside from isolated cases when allowable levels were exceeded.
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Contribution biblioteca |
| Language: | Russian |
| Published: |
2019
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| Subjects: | Long-term records, Pesticides, Heavy metals, Organochlorine pesticides, Engraulis encrasicolus, Rutilus heckelii, Neogobius melanostomus, DDT, Commercial species, Accumulation, Arsenic, Polychlorinated biphenyls, Тяжелые металлы, ДДТ, Пестициды, Аккумуляция, Поллютанты, Мышьяк, ПХБ, Sander lucioperca, |
| Online Access: | http://hdl.handle.net/1834/15630 |
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