VILLA, Sara, Sonia MIGLIORATI, Gianna Serafina MONTI, Ivan HOLOUBEK and Marco VIGHI. RISK OF POP MIXTURES ON THE ARCTIC FOOD CHAIN. Environmental Toxicology and Chemistry. HOBOKEN: Wiley, 2017, vol. 36, No 5, p. 1181-1192. ISSN 0730-7268. Available from: https://dx.doi.org/10.1002/etc.3671. |
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Basic information | |
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Original name | RISK OF POP MIXTURES ON THE ARCTIC FOOD CHAIN |
Authors | VILLA, Sara (380 Italy), Sonia MIGLIORATI (380 Italy), Gianna Serafina MONTI (380 Italy), Ivan HOLOUBEK (203 Czech Republic, guarantor, belonging to the institution) and Marco VIGHI (380 Italy). |
Edition | Environmental Toxicology and Chemistry, HOBOKEN, Wiley, 2017, 0730-7268. |
Other information | |
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Original language | English |
Type of outcome | Article in a journal |
Field of Study | 10511 Environmental sciences |
Country of publisher | United States of America |
Confidentiality degree | is not subject to a state or trade secret |
WWW | URL |
Impact factor | Impact factor: 3.179 |
RIV identification code | RIV/00216224:14310/17:00100197 |
Organization unit | Faculty of Science |
Doi | http://dx.doi.org/10.1002/etc.3671 |
UT WoS | 000402302300008 |
Keywords in English | Persistent organic pollutants (POPs); Mixture; Risk assessment; Arctic; Penalized regression smoothers |
Tags | NZ, rivok |
Tags | International impact, Reviewed |
Changed by | Changed by: Ing. Nicole Zrilić, učo 240776. Changed: 11/4/2018 14:10. |
Abstract |
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The exposure of the Arctic ecosystem to persistent organic pollutants (POPs) was assessed through a review of literature data. Concentrations of 19 chemicals or congeneric groups were estimated for the highest levels of the Arctic food chain (Arctic cod, ringed seals, and polar bears). The ecotoxicological risk for seals, bears, and bear cubs was estimated by applying the concentration addition (CA) concept. The risk of POP mixtures was very low in seals. By contrast, the risk was 2 orders of magnitude higher than the risk threshold for adult polar bears and even more (3 orders of magnitude above the threshold) for bear cubs fed with contaminated milk. Based on the temporal trends available for many of the chemicals, the temporal trend of the mixture risk for bear cubs was calculated. Relative to the 1980s, a decrease in risk from the POP mixture is evident, mainly because of international control measures. However, the composition of the mixture substantially changes, and the contribution of new POPs (particularly perfluorooctane sulfonate) increases. These results support the effectiveness of control measures, such as those promulgated in the Stockholm Convention, as well as the urgent need for their implementation for new and emerging POPs. |