Legacy and Emerging Persistent Organic Pollutants in Antarctic Benthic Invertebrates near Rothera Point, Western Antarctic Peninsula
Open Access
- 17 January 2020
- journal article
- research article
- Published by American Chemical Society (ACS) in Environmental Science & Technology
- Vol. 54 (5), 2763-2771
- https://doi.org/10.1021/acs.est.9b06622
Abstract
The levels of pollutants in polar regions is gaining progressively more attention from the science 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 persistent organic pollutants (POPs). In this study samples of Antarctic marine benthic organisms were analysed for legacy and emerging POPs to comprehensively assess the current POPs concentrations in Antarctic benthos and infer the potential sources of the pollutants. Specimens of 5 different benthic invertebrate species were collected in 2 distinct locations near the Rothera Research station (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 HCB and BDE-209, reaching the highest concentrations in limpets and urchins, followed by sea stars, ascidians and sea cucumbers. The relative congener patterns of PCBs and PBDEs were almost the same in all species. Some chemicals (e.g. Heptachlor, Oxychlordane and Mirex) were detected in the Antarctic invertebrates for the first time. Statistical methods revealed that the distribution of the POPs is not only driven by the feeding traits of the species, but also by the physico-chemical properties of the individual compounds. Benthic invertebrates are excellent indicators of the contaminant patterns of inshore Antarctic ecosystems.Keywords
Funding Information
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek (866.14.104)
This publication has 55 references indexed in Scilit:
- Polychlorinated Biphenyls, Hexachlorocyclohexanes and Hexachlorobenzene in Seawater and Phytoplankton from the Southern Ocean (Weddell, South Scotia, and Bellingshausen Seas)Environmental Science & Technology, 2013
- Persistent organic pollutants in Antarctica: current and future research prioritiesJournal of Environmental Monitoring, 2011
- Unrecognized Antarctic Biodiversity: A Case Study of the Genus Odontaster (Odontasteridae; Asteroidea)Integrative and Comparative Biology, 2010
- Negative feedback in the cold: ice retreat produces new carbon sinks in AntarcticaGlobal Change Biology, 2010
- Meteorological observing and climate in the British Antarctic Territory and South Georgia: Part 2Weather, 2009
- Environmental contamination in Antarctic ecosystemsScience of The Total Environment, 2008
- Food Web–Specific Biomagnification of Persistent Organic PollutantsScience, 2007
- Bioaccumulation of PCBs and chlorinated pesticides in seals, fishes and invertebrates from the White Sea, RussiaScience of The Total Environment, 2003
- Assessing Long-Range Transport Potential of Persistent Organic PollutantsEnvironmental Science & Technology, 2000
- Antarctic tourism and environmental concernsMarine Pollution Bulletin, 1992