POPs, PFAS and metals in ringed seals (Pusa hispida botnica) from the Baltic 1978-2015
Twenty two pooled samples from 69 juvenile ringed seals collected between 1974 and 2015 were analyzed for PCB (22 congeners), pesticides, PFAS, metals and selenium. Most seals were bycaught in fishing gear. All CB congeners were above the detection limits. CB-138 and -153 accounted for ca 50% of ∑PC...
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Naturhistoriska riksmuseet, NRM
2019
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ftsepa:oai:DiVA.org:naturvardsverket-8244 |
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ftsepa:oai:DiVA.org:naturvardsverket-8244 2023-07-16T04:00:37+02:00 POPs, PFAS and metals in ringed seals (Pusa hispida botnica) from the Baltic 1978-2015 Roos, Anna Bäcklin, Britt-Marie Ericson Jogsten, Ingrid Wang, Thanh Awad, Raed Benskin, Jonathan 2019 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:naturvardsverket:diva-8244 eng eng Naturhistoriska riksmuseet, NRM Universitet, Örebro universitet Universitet, Stockholms universitet, SU Stockholm : Naturhistoriska Riksmuseet http://urn.kb.se/resolve?urn=urn:nbn:se:naturvardsverket:diva-8244 info:eu-repo/semantics/openAccess Östersjön Bottenhavet Bottenviken PCB DDT PFAS PFOS Metaller Kvicksilver Selen vikare späck lever Environmental Sciences Miljövetenskap Report info:eu-repo/semantics/report text 2019 ftsepa 2023-06-26T22:11:14Z Twenty two pooled samples from 69 juvenile ringed seals collected between 1974 and 2015 were analyzed for PCB (22 congeners), pesticides, PFAS, metals and selenium. Most seals were bycaught in fishing gear. All CB congeners were above the detection limits. CB-138 and -153 accounted for ca 50% of ∑PCB. CB-180 and -101 stood for ca 10 % each. ∑PCB decreased over the study period with approximately -4.6% annually and since 2000 the mean concentrations (i.e. in pooled samples) were below 9 mg/kg in these juvenile seals, which is the lowest suggested threshold for onset of physiological effects in experimental marine mammal studies. sDDT decreased with a rate of ca -8.9% yearly. The proportion of p,p’DDE increased over time as p,p’DDT decreased. Chlordanes and nonachlor also decreased over time (-4.6%). Trans-nonachlor was the most predominating compound. Finally, mirex decreased over time at a rate of approximately -2.3% annually. Nine PBDE congeners were analyzed in blubber. The predominating BDE was BDE-47 (ca 70%) followed by BDE-99 and BDE-100. Most BDE congeners peaked during the 1990s. Eleven perfluorinated substances were analysed. PFHxA and PFHpA were below detection limits in all but three samples not included in the statistical analyses. All but FOSA showed increasing trends over the study period, with increasing rates of +5-9% annually. However, if only looking at the last 15 years the concentrations appear stable (i.e. not increasing or decreasing). FOSA showed decreasing rates over the full period as well as the last 15 years. PFOS was observed in the highest concentrations (range 9.4-400 ng/g ww) and was the predominant PFAS. PFNA was the predominant PFCA followed by PFDA and PFUnDA. Arsenic (As), cadmium (Cd), cobalt (Co), copper (Cu), (Cr), mercury (Hg), manganese (Mn), nickel (Ni), selenium (Se) and zinc (Zn) were analysed in seal liver. Cr was below detection limit in all samples but one, which was at detection limit. Ni was below detection limit in all samples. Only Co showed slight decreasing ... Report Pusa hispida Vikare Swedish environmental protection agency: Publications (DiVA) Lever ENVELOPE(-63.608,-63.608,-65.506,-65.506) |
institution |
Open Polar |
collection |
Swedish environmental protection agency: Publications (DiVA) |
op_collection_id |
ftsepa |
language |
English |
topic |
Östersjön Bottenhavet Bottenviken PCB DDT PFAS PFOS Metaller Kvicksilver Selen vikare späck lever Environmental Sciences Miljövetenskap |
spellingShingle |
Östersjön Bottenhavet Bottenviken PCB DDT PFAS PFOS Metaller Kvicksilver Selen vikare späck lever Environmental Sciences Miljövetenskap Roos, Anna Bäcklin, Britt-Marie Ericson Jogsten, Ingrid Wang, Thanh Awad, Raed Benskin, Jonathan POPs, PFAS and metals in ringed seals (Pusa hispida botnica) from the Baltic 1978-2015 |
topic_facet |
Östersjön Bottenhavet Bottenviken PCB DDT PFAS PFOS Metaller Kvicksilver Selen vikare späck lever Environmental Sciences Miljövetenskap |
description |
Twenty two pooled samples from 69 juvenile ringed seals collected between 1974 and 2015 were analyzed for PCB (22 congeners), pesticides, PFAS, metals and selenium. Most seals were bycaught in fishing gear. All CB congeners were above the detection limits. CB-138 and -153 accounted for ca 50% of ∑PCB. CB-180 and -101 stood for ca 10 % each. ∑PCB decreased over the study period with approximately -4.6% annually and since 2000 the mean concentrations (i.e. in pooled samples) were below 9 mg/kg in these juvenile seals, which is the lowest suggested threshold for onset of physiological effects in experimental marine mammal studies. sDDT decreased with a rate of ca -8.9% yearly. The proportion of p,p’DDE increased over time as p,p’DDT decreased. Chlordanes and nonachlor also decreased over time (-4.6%). Trans-nonachlor was the most predominating compound. Finally, mirex decreased over time at a rate of approximately -2.3% annually. Nine PBDE congeners were analyzed in blubber. The predominating BDE was BDE-47 (ca 70%) followed by BDE-99 and BDE-100. Most BDE congeners peaked during the 1990s. Eleven perfluorinated substances were analysed. PFHxA and PFHpA were below detection limits in all but three samples not included in the statistical analyses. All but FOSA showed increasing trends over the study period, with increasing rates of +5-9% annually. However, if only looking at the last 15 years the concentrations appear stable (i.e. not increasing or decreasing). FOSA showed decreasing rates over the full period as well as the last 15 years. PFOS was observed in the highest concentrations (range 9.4-400 ng/g ww) and was the predominant PFAS. PFNA was the predominant PFCA followed by PFDA and PFUnDA. Arsenic (As), cadmium (Cd), cobalt (Co), copper (Cu), (Cr), mercury (Hg), manganese (Mn), nickel (Ni), selenium (Se) and zinc (Zn) were analysed in seal liver. Cr was below detection limit in all samples but one, which was at detection limit. Ni was below detection limit in all samples. Only Co showed slight decreasing ... |
format |
Report |
author |
Roos, Anna Bäcklin, Britt-Marie Ericson Jogsten, Ingrid Wang, Thanh Awad, Raed Benskin, Jonathan |
author_facet |
Roos, Anna Bäcklin, Britt-Marie Ericson Jogsten, Ingrid Wang, Thanh Awad, Raed Benskin, Jonathan |
author_sort |
Roos, Anna |
title |
POPs, PFAS and metals in ringed seals (Pusa hispida botnica) from the Baltic 1978-2015 |
title_short |
POPs, PFAS and metals in ringed seals (Pusa hispida botnica) from the Baltic 1978-2015 |
title_full |
POPs, PFAS and metals in ringed seals (Pusa hispida botnica) from the Baltic 1978-2015 |
title_fullStr |
POPs, PFAS and metals in ringed seals (Pusa hispida botnica) from the Baltic 1978-2015 |
title_full_unstemmed |
POPs, PFAS and metals in ringed seals (Pusa hispida botnica) from the Baltic 1978-2015 |
title_sort |
pops, pfas and metals in ringed seals (pusa hispida botnica) from the baltic 1978-2015 |
publisher |
Naturhistoriska riksmuseet, NRM |
publishDate |
2019 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:naturvardsverket:diva-8244 |
long_lat |
ENVELOPE(-63.608,-63.608,-65.506,-65.506) |
geographic |
Lever |
geographic_facet |
Lever |
genre |
Pusa hispida Vikare |
genre_facet |
Pusa hispida Vikare |
op_relation |
http://urn.kb.se/resolve?urn=urn:nbn:se:naturvardsverket:diva-8244 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1771549598165237760 |