PMID- 35364186
OWN - NLM
STAT- MEDLINE
DCOM- 20220427
LR  - 20220427
IS  - 1873-6424 (Electronic)
IS  - 0269-7491 (Linking)
VI  - 304
DP  - 2022 Jul 1
TI  - Small Arctic rivers transport legacy contaminants from thawing catchments to 
      coastal areas in Kongsfjorden, Svalbard.
PG  - 119191
LID - S0269-7491(22)00405-5 [pii]
LID - 10.1016/j.envpol.2022.119191 [doi]
AB  - Decades of atmospheric and oceanic long-range transport from lower latitudes have 
      resulted in deposition and storage of persistent organic pollutants (POPs) in 
      Arctic regions. With increased temperatures, melting glaciers and thawing 
      permafrost may serve as a secondary source of these stored POPs to freshwater and 
      marine ecosystems. Here, we present concentrations and composition of legacy POPs 
      in glacier- and permafrost-influenced rivers and coastal waters in the high 
      Arctic Svalbard fjord Kongsfjorden. Targeted contaminants include polychlorinated 
      biphenyls (PCBs), hexachlorobenzene (HCB), dichlorodiphenyltrichloroethanes 
      (DDTs), hexachlorocyclohexanes (HCHs) and chlordane pesticides. Dissolved 
      (defined as fraction filtered through 0.7 mum GF/F filter) and particulate samples 
      were collected from rivers and near-shore fjord stations along a gradient from 
      the heavily glaciated inner fjord to the tundra-dominated catchments at the outer 
      fjord. There were no differences in contaminant concentration or pattern between 
      glacier and tundra-dominated catchments, and the general contaminant pattern 
      reflected snow melt with some evidence of pesticides released with glacial 
      meltwater. Rivers were a small source of chlordane pesticides, DDTs and 
      particulate HCB to the marine system and the particle-rich glacial meltwater 
      contained higher concentrations of particle associated contaminants compared to 
      the fjord. This study provides rare insight into the role of small Arctic rivers 
      in transporting legacy contaminants from thawing catchments to coastal areas. 
      Results indicate that the spring thaw is a source of contaminants to 
      Kongsfjorden, and that expected increases in runoff on Svalbard and elsewhere in 
      the Arctic could have implications for the contamination of Arctic coastal 
      food-webs.
CI  - Copyright (c) 2022 The Authors. Published by Elsevier Ltd.. All rights reserved.
FAU - McGovern, Maeve
AU  - McGovern M
AD  - Norwegian Institute for Water Research (NIVA), Okernveien 94, 0579, Oslo, Norway; 
      Department of Arctic Marine Biology, UiT, The Arctic University of Norway, 9027, 
      Tromso, Norway. Electronic address: maeve.mcgovern@niva.no.
FAU - Borga, Katrine
AU  - Borga K
AD  - Department of Biosciences, University of Oslo, 0316, Oslo, Norway.
FAU - Heimstad, Eldbjorg
AU  - Heimstad E
AD  - NILU-Norwegian Institute for Air Research, Fram-High North Research Centre for 
      Climate and the Environment, 9296, Tromso, Norway.
FAU - Ruus, Anders
AU  - Ruus A
AD  - Norwegian Institute for Water Research (NIVA), Okernveien 94, 0579, Oslo, Norway; 
      Department of Biosciences, University of Oslo, 0316, Oslo, Norway.
FAU - Christensen, Guttorm
AU  - Christensen G
AD  - Akvaplan-niva, Fram-High North Research Centre for Climate and the Environment, 
      9296, Tromso, Norway.
FAU - Evenset, Anita
AU  - Evenset A
AD  - Department of Arctic Marine Biology, UiT, The Arctic University of Norway, 9027, 
      Tromso, Norway; Akvaplan-niva, Fram-High North Research Centre for Climate and 
      the Environment, 9296, Tromso, Norway. Electronic address: aev@akvaplan.niva.no.
LA  - eng
PT  - Journal Article
DEP - 20220329
PL  - England
TA  - Environ Pollut
JT  - Environmental pollution (Barking, Essex : 1987)
JID - 8804476
RN  - 0 (Environmental Pollutants)
RN  - 0 (Pesticides)
RN  - 12789-03-6 (Chlordan)
RN  - 4Z87H0LKUY (Hexachlorobenzene)
SB  - IM
MH  - Arctic Regions
MH  - Chlordan/analysis
MH  - Ecosystem
MH  - Environmental Monitoring
MH  - *Environmental Pollutants
MH  - Hexachlorobenzene/analysis
MH  - *Pesticides/analysis
MH  - Rivers
MH  - Svalbard
OTO - NOTNLM
OT  - Climate change
OT  - Coastal arctic
OT  - Glacial meltwater
OT  - Pesticides
OT  - Terrestrial runoff
EDAT- 2022/04/02 06:00
MHDA- 2022/04/28 06:00
CRDT- 2022/04/01 20:11
PHST- 2021/09/25 00:00 [received]
PHST- 2022/03/14 00:00 [revised]
PHST- 2022/03/18 00:00 [accepted]
PHST- 2022/04/02 06:00 [pubmed]
PHST- 2022/04/28 06:00 [medline]
PHST- 2022/04/01 20:11 [entrez]
AID - S0269-7491(22)00405-5 [pii]
AID - 10.1016/j.envpol.2022.119191 [doi]
PST - ppublish
SO  - Environ Pollut. 2022 Jul 1;304:119191. doi: 10.1016/j.envpol.2022.119191. Epub 
      2022 Mar 29.