Rights statement: The final publication is available at Springer via http://dx.doi.org/10.1007/s11356-018-2625-7
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Licence: CC BY: Creative Commons Attribution 4.0 International License
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Polychlorinated biphenyls (PCBs) as sentinels for the elucidation of Arctic environmental change processes
T2 - a comprehensive review combined with ArcRisk project results
AU - Carlsson, Pernilla
AU - Breivik, Knut
AU - Brorström-Lundén, Eva
AU - Cousins, Ian
AU - Christensen, Jesper
AU - Grimalt, Joan O.
AU - Halsall, Crispin James
AU - Kallenborn, Roland
AU - Abass, Khaled
AU - Lammel, Gerhard
AU - Munthe, John
AU - MacLeod, Matthew
AU - Øyvind Odland, Jon
AU - Pawlak, Janet
AU - Rautio, Arja
AU - Reiersen, Lars-Otto
AU - Schlabach, Martin
AU - Stemmler, Irene
AU - Wilson, Simon
AU - Wöhrnschimmel, Henry
N1 - The final publication is available at Springer via http://dx.doi.org/10.1007/s11356-018-2625-7
PY - 2018/8
Y1 - 2018/8
N2 - Polychlorinated biphenyls (PCBs) can be used as chemical sentinels for the assessment of anthropogenic influences on Arctic environmental change. We present an overview of studies on PCBs in the Arctic and combine these with the findings from ArcRisk—a major European Union-funded project aimed at examining the effects of climate change on the transport of contaminants to and their behaviour of in the Arctic—to provide a case study on the behaviour and impact of PCBs over time in the Arctic. PCBs in the Arctic have shown declining trends in the environment over the last few decades. Atmospheric long-range transport from secondary and primary sources is the major input of PCBs to the Arctic region. Modelling of the atmospheric PCB composition and behaviour showed some increases in environmental concentrations in a warmer Arctic, but the general decline in PCB levels is still the most prominent feature. ‘Within-Arctic’ processing of PCBs will be affected by climate change-related processes such as changing wet deposition. These in turn will influence biological exposure and uptake of PCBs. The pan-Arctic rivers draining large Arctic/sub-Arctic catchments provide a significant source of PCBs to the Arctic Ocean, although changes in hydrology/sediment transport combined with a changing marine environment remain areas of uncertainty with regard to PCB fate. Indirect effects of climate change on human exposure, such as a changing diet will influence and possibly reduce PCB exposure for indigenous peoples. Body burdens of PCBs have declined since the 1980s and are predicted to decline further.
AB - Polychlorinated biphenyls (PCBs) can be used as chemical sentinels for the assessment of anthropogenic influences on Arctic environmental change. We present an overview of studies on PCBs in the Arctic and combine these with the findings from ArcRisk—a major European Union-funded project aimed at examining the effects of climate change on the transport of contaminants to and their behaviour of in the Arctic—to provide a case study on the behaviour and impact of PCBs over time in the Arctic. PCBs in the Arctic have shown declining trends in the environment over the last few decades. Atmospheric long-range transport from secondary and primary sources is the major input of PCBs to the Arctic region. Modelling of the atmospheric PCB composition and behaviour showed some increases in environmental concentrations in a warmer Arctic, but the general decline in PCB levels is still the most prominent feature. ‘Within-Arctic’ processing of PCBs will be affected by climate change-related processes such as changing wet deposition. These in turn will influence biological exposure and uptake of PCBs. The pan-Arctic rivers draining large Arctic/sub-Arctic catchments provide a significant source of PCBs to the Arctic Ocean, although changes in hydrology/sediment transport combined with a changing marine environment remain areas of uncertainty with regard to PCB fate. Indirect effects of climate change on human exposure, such as a changing diet will influence and possibly reduce PCB exposure for indigenous peoples. Body burdens of PCBs have declined since the 1980s and are predicted to decline further.
KW - Polychlorinated biphenyls
KW - PCB
KW - Arctic
KW - Climate change
KW - Environmental properties
KW - Distribution pathways
KW - Environmental fate
U2 - 10.1007/s11356-018-2625-7
DO - 10.1007/s11356-018-2625-7
M3 - Journal article
VL - 25
SP - 22499
EP - 22528
JO - Environmental Science and Pollution Research
JF - Environmental Science and Pollution Research
SN - 0944-1344
IS - 23
ER -