J 2017

RISK OF POP MIXTURES ON THE ARCTIC FOOD CHAIN

VILLA, Sara, Sonia MIGLIORATI, Gianna Serafina MONTI, Ivan HOLOUBEK, Marco VIGHI et. al.

Basic information

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

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10511 Environmental sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 3.179

RIV identification code

RIV/00216224:14310/17:00100197

Organization unit

Faculty of Science

UT WoS

000402302300008

Keywords in English

Persistent organic pollutants (POPs); Mixture; Risk assessment; Arctic; Penalized regression smoothers

Tags

Tags

International impact, Reviewed
Změněno: 11/4/2018 14:10, Ing. Nicole Zrilić

Abstract

V originále

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.