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Spatial and temporal trends of alternative flame retardants and polybrominated diphenyl ethers in ringed seals (Phoca hispida) across the Canadian Arctic.
Environ Pollut. 2017 Apr; 223:266-276.EP

Abstract

Concentrations of alternative flame retardants and polybrominated diphenyl ethers (PBDEs) were analyzed in ringed seal (Phoca hispida) blubber collected across the Canadian Arctic during subsistence hunts between 1998 and 2013. More than 80% of sampled animals were females and juvenile males. The highest mean ΣPBDE concentrations (sum of 13 congeners) were found in seals from Nain (Nunatsiavut) as well as Inukjuaq and Arviat (Hudson Bay) and the lowest mean levels were found in seals from Lancaster Sound. BDE-47 and -99 were the predominant PBDE congeners quantified in ringed seals. The most frequently detected non-PBDE flame retardants were polybrominated biphenyl 101 (BB-101, 57% of samples analyzed for this chemical), hexabromocyclododecane (HBCDD; 38%), hexabromobenzene (HBB, 30%), and 2-ethylhexyl-2,3,4,5-tetrabromobenzoate (EHTeBB, 23%). The relative trophic position of seals, estimated using stable isotopes, did not vary over time and did not influence flame retardant blubber concentrations. The relative carbon source increased over time at Arviat and Resolute Bay and weak relationships were observed with ΣPBDEs in blubber of seals. ΣPBDEs increased significantly from 1998 to 2008 in ringed seals from East Baffin and subsequently decreased in recent years. PBDE levels at other sites fluctuated slightly over time. HBCDD concentrations increased at several sites over the past decade. The presence of flame retardants in ringed seals suggests their persistence and their continuous inputs in the Canadian Arctic environment. Monitoring and research on the effects of these contaminants in seals are warranted given the importance of this species in Arctic marine food webs and for local communities.

Authors+Show Affiliations

Environment and Climate Change Canada, 105 McGill Street, Montreal, QC H2Y 2E7, Canada. Electronic address: magali.houde@canada.ca.Environment and Climate Change Canada, 867 Lakeshore Road, Burlington, ON L7S 1A1, Canada.Department of Fisheries and Oceans, Arctic Aquatic Research Division, Winnipeg, MB R3T 2N6, Canada.Environment and Climate Change Canada, 105 McGill Street, Montreal, QC H2Y 2E7, Canada.Memorial University, St. John's, NL A1B 3X9, Canada.Ehime University, Center for Marine Environmental Studies (CMES), Matsuyama 790-8566, Japan.Shinshu University, Department of Environmental Sciences, Matsumoto 390-8621, Japan.Nunavik Research Centre, Kuujjuaq, QC J0M 1C0, Canada.Environment and Climate Change Canada, 867 Lakeshore Road, Burlington, ON L7S 1A1, Canada.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28131476

Citation

Houde, M, et al. "Spatial and Temporal Trends of Alternative Flame Retardants and Polybrominated Diphenyl Ethers in Ringed Seals (Phoca Hispida) Across the Canadian Arctic." Environmental Pollution (Barking, Essex : 1987), vol. 223, 2017, pp. 266-276.
Houde M, Wang X, Ferguson SH, et al. Spatial and temporal trends of alternative flame retardants and polybrominated diphenyl ethers in ringed seals (Phoca hispida) across the Canadian Arctic. Environ Pollut. 2017;223:266-276.
Houde, M., Wang, X., Ferguson, S. H., Gagnon, P., Brown, T. M., Tanabe, S., Kunito, T., Kwan, M., & Muir, D. C. G. (2017). Spatial and temporal trends of alternative flame retardants and polybrominated diphenyl ethers in ringed seals (Phoca hispida) across the Canadian Arctic. Environmental Pollution (Barking, Essex : 1987), 223, 266-276. https://doi.org/10.1016/j.envpol.2017.01.023
Houde M, et al. Spatial and Temporal Trends of Alternative Flame Retardants and Polybrominated Diphenyl Ethers in Ringed Seals (Phoca Hispida) Across the Canadian Arctic. Environ Pollut. 2017;223:266-276. PubMed PMID: 28131476.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Spatial and temporal trends of alternative flame retardants and polybrominated diphenyl ethers in ringed seals (Phoca hispida) across the Canadian Arctic. AU - Houde,M, AU - Wang,X, AU - Ferguson,S H, AU - Gagnon,P, AU - Brown,T M, AU - Tanabe,S, AU - Kunito,T, AU - Kwan,M, AU - Muir,D C G, Y1 - 2017/01/26/ PY - 2016/07/12/received PY - 2017/01/10/revised PY - 2017/01/11/accepted PY - 2017/1/31/pubmed PY - 2017/8/8/medline PY - 2017/1/30/entrez KW - Emerging flame retardants KW - Long-term trends KW - PBDE KW - Ringed seal blubber KW - Spatial distribution SP - 266 EP - 276 JF - Environmental pollution (Barking, Essex : 1987) JO - Environ Pollut VL - 223 N2 - Concentrations of alternative flame retardants and polybrominated diphenyl ethers (PBDEs) were analyzed in ringed seal (Phoca hispida) blubber collected across the Canadian Arctic during subsistence hunts between 1998 and 2013. More than 80% of sampled animals were females and juvenile males. The highest mean ΣPBDE concentrations (sum of 13 congeners) were found in seals from Nain (Nunatsiavut) as well as Inukjuaq and Arviat (Hudson Bay) and the lowest mean levels were found in seals from Lancaster Sound. BDE-47 and -99 were the predominant PBDE congeners quantified in ringed seals. The most frequently detected non-PBDE flame retardants were polybrominated biphenyl 101 (BB-101, 57% of samples analyzed for this chemical), hexabromocyclododecane (HBCDD; 38%), hexabromobenzene (HBB, 30%), and 2-ethylhexyl-2,3,4,5-tetrabromobenzoate (EHTeBB, 23%). The relative trophic position of seals, estimated using stable isotopes, did not vary over time and did not influence flame retardant blubber concentrations. The relative carbon source increased over time at Arviat and Resolute Bay and weak relationships were observed with ΣPBDEs in blubber of seals. ΣPBDEs increased significantly from 1998 to 2008 in ringed seals from East Baffin and subsequently decreased in recent years. PBDE levels at other sites fluctuated slightly over time. HBCDD concentrations increased at several sites over the past decade. The presence of flame retardants in ringed seals suggests their persistence and their continuous inputs in the Canadian Arctic environment. Monitoring and research on the effects of these contaminants in seals are warranted given the importance of this species in Arctic marine food webs and for local communities. SN - 1873-6424 UR - https://www.unboundmedicine.com/medline/citation/28131476/Spatial_and_temporal_trends_of_alternative_flame_retardants_and_polybrominated_diphenyl_ethers_in_ringed_seals__Phoca_hispida__across_the_Canadian_Arctic_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0269-7491(17)30123-9 DB - PRIME DP - Unbound Medicine ER -