Legacy and Emerging Persistent Organic Pollutants in Antarctic Benthic Invertebrates near Rothera Point, Western Antarctic Peninsula
| Autor: | Simon A. Morley, Artem Krasnobaev, Guillaume ten Dam, Fang Peng, Stefan P.J. van Leeuwen, Nico W. van den Brink, Rita Boerrigter-Eenling, Lloyd S. Peck |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Pollution
Heptachlor media_common.quotation_subject BU Contaminanten & Toxines 010501 environmental sciences Toxicology 01 natural sciences Article chemistry.chemical_compound BU Contaminants & Toxins Polybrominated diphenyl ethers Environmental Chemistry Life Science 14. Life underwater Toxicologie 0105 earth and related environmental sciences Invertebrate media_common Pollutant WIMEK General Chemistry Hexachlorobenzene Congener chemistry 13. Climate action Benthic zone Environmental chemistry Environmental science |
| Zdroj: | Environmental science & technology, 54(5), 2763-2771 Environmental science & technology 54 (2020) 5 Environmental Science & Technology |
| ISSN: | 0013-936X |
| Popis: | Pollutant levels in polar regions are gaining progressively more attention from the scientific community. This is especially so for pollutants that persist in the environment and can reach polar latitudes via a wide range of routes, such as some persistent organic pollutants (POPs). In this study, samples of Antarctic marine benthic organisms were analyzed for legacy and emerging POPs (polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), and organochlorine pesticides) to comprehensively assess their current POP concentrations and infer the potential sources of the pollutants. Specimens of five benthic invertebrate species were collected at two distinct locations near Rothera research station on the Antarctic Peninsula (67°35′8 ˝ S and 68°7′59 ˝ W). Any impact of the nearby Rothera station as a local source of pollution appeared to be negligible. The most abundant chemicals detected were hexachlorobenzene (HCB) and BDE-209. The highest concentrations detected were in limpets and sea urchins, followed by sea stars, ascidians, and sea cucumbers. The relative congener patterns of PCBs and PBDEs were similar in all of the species. Some chemicals (e.g., heptachlor, oxychlordane, and mirex) were detected in the Antarctic invertebrates for the first time. Statistical analyses revealed that the distribution of the POPs was not only driven by the feeding traits of the species but also by the physicochemical properties of the specific compounds. |
| Databáze: | OpenAIRE |
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