PMID- 33832784 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20210518 LR - 20210518 IS - 1879-1026 (Electronic) IS - 0048-9697 (Linking) VI - 778 DP - 2021 Jul 15 TI - Chemical hazard in glacial melt? The glacial system as a secondary source of POPs (in the Northern Hemisphere). A systematic review. PG - 145244 LID - S0048-9697(21)00310-7 [pii] LID - 10.1016/j.scitotenv.2021.145244 [doi] AB - Toxicity of compounds belonging to persistent organic pollutants (POPs) is widely known, and their re-emission from glaciers has been conclusively demonstrated. However, the harmful effects associated with such secondary emissions have yet to be thoroughly understood, especially in the spatial and temporal context, as the existing literature has a clear sampling bias with the best recognition of sites in the European Alps. In this review, we elaborated on the hazards associated with the rapid melting of glaciers releasing organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs) and polycyclic aromatic hydrocarbons (PAHs). To this end, we collated knowledge on: (1) the varying glacier melt rate across the Northern Hemisphere, (2) the content of POPs in the glacial system components, including the less represented areas, (3) the mechanisms of POPs transfer through the glacial system, including the importance of immediate emission from snow melt, (4) risk assessment associated with POPs re-emission. Based on the limited existing information, the health risk of drinking glacial water can be considered negligible, but consuming aquatic organisms from these waters may increase the risk of cancer. Remoteness from emission sources is a leading factor in the presence of such risk, yet the Arctic is likely to be more exposed to it in the future due to large-scale processes shifting atmospheric pollution and the continuous supply of snow. For future risk monitoring, we recommend to explore the synergistic toxic effects of multiple contaminants and fill the gaps in the spatial distribution of data. CI - Copyright (c) 2021 Elsevier B.V. All rights reserved. FAU - Pawlak, Filip AU - Pawlak F AD - Department of Analytical Chemistry, Chemical Faculty, Gdansk University of Technology, G. Narutowicza 11/12, 80-233 Gdansk, Poland. FAU - Koziol, Krystyna AU - Koziol K AD - Department of Analytical Chemistry, Chemical Faculty, Gdansk University of Technology, G. Narutowicza 11/12, 80-233 Gdansk, Poland. Electronic address: krykozio@pg.edu.pl. FAU - Polkowska, Zaneta AU - Polkowska Z AD - Department of Analytical Chemistry, Chemical Faculty, Gdansk University of Technology, G. Narutowicza 11/12, 80-233 Gdansk, Poland. LA - eng PT - Journal Article PT - Review DEP - 20210129 PL - Netherlands TA - Sci Total Environ JT - The Science of the total environment JID - 0330500 SB - IM OTO - NOTNLM OT - Glaciers OT - OCPs OT - PAHs OT - PBDEs OT - PCBs OT - Re-emission OT - Risk COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2021/04/10 06:00 MHDA- 2021/04/10 06:01 CRDT- 2021/04/09 05:42 PHST- 2020/09/28 00:00 [received] PHST- 2021/01/13 00:00 [revised] PHST- 2021/01/13 00:00 [accepted] PHST- 2021/04/10 06:00 [pubmed] PHST- 2021/04/10 06:01 [medline] PHST- 2021/04/09 05:42 [entrez] AID - S0048-9697(21)00310-7 [pii] AID - 10.1016/j.scitotenv.2021.145244 [doi] PST - ppublish SO - Sci Total Environ. 2021 Jul 15;778:145244. doi: 10.1016/j.scitotenv.2021.145244. Epub 2021 Jan 29.