Traditional Diet and Environmental Contaminants in Coastal Chukotka II: Legacy POPs
The article is the second in the series of four that present the results of a study on environmental contaminants in coastal Chukotka, conducted in the context of a multi-disciplinary investigation of indigenous foodways in the region. The article presents the results of the analysis of legacy Persi...
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ftdoajarticles:oai:doaj.org/article:900d2f090e9846afafd00dbba3c0d4b1 2023-05-15T15:16:17+02:00 Traditional Diet and Environmental Contaminants in Coastal Chukotka II: Legacy POPs Alexey A. Dudarev Valery S. Chupakhin Sergey V. Vlasov Sveta Yamin-Pasternak 2019-02-01T00:00:00Z https://doi.org/10.3390/ijerph16050695 https://doaj.org/article/900d2f090e9846afafd00dbba3c0d4b1 EN eng MDPI AG https://www.mdpi.com/1660-4601/16/5/695 https://doaj.org/toc/1660-4601 1660-4601 doi:10.3390/ijerph16050695 https://doaj.org/article/900d2f090e9846afafd00dbba3c0d4b1 International Journal of Environmental Research and Public Health, Vol 16, Iss 5, p 695 (2019) subsistence food traditional diet Indigenous people environmental contaminants PTS POPs DDT PCB food safety limits coastal Chukotka Russian Arctic Medicine R article 2019 ftdoajarticles https://doi.org/10.3390/ijerph16050695 2022-12-31T10:50:13Z The article is the second in the series of four that present the results of a study on environmental contaminants in coastal Chukotka, conducted in the context of a multi-disciplinary investigation of indigenous foodways in the region. The article presents the results of the analysis of legacy Persistent Organic Pollutants (POPs) found in the samples of locally harvested food and indoor matters, collected in 2016 in coastal Chukotka. Temporal trends and circumpolar comparisons of POPs in food have been carried out. Estimated daily intakes (EDIs) of POPs by local food consumption were calculated based on the food intake frequencies (questionnaire data). Concentrations of the studied legacy POPs in marine mammal blubber were relatively high (up to 100⁻200 µg/kg ww) but not exceeding the allowable limits. Gray whale blubber and whale mantak were the most contaminated foods, followed by the ringed, spotted and bearded seal blubber, then by walrus blubber and fermented walrus (deboned walrus parts aged in subterranean pits, typically over a period of 6 months). At the backdrop of general decrease or invariability (compared to the previous coastal Chukotka study 15 years ago) of the majority of POPs, an increasing tendency of HCB, mainly in marine mammals, were noted. Legacy POPs in marine mammals sampled in Chukotka were generally much lower than in those sampled in Alaska and northern Canada. We suggest that the Alaska Coastal Current from the Bering Sea plays a major role in this phenomenon. Analyses of the additional sources of in-home food contamination (home-brewed alcohol, domestic insecticides) have revealed relatively high levels of HCHs, DDTs and PCBs, which still represent a share of dietary exposure of local people to POPs. Article in Journal/Newspaper Arctic bearded seal Bering Sea Chukotka Alaska walrus* Directory of Open Access Journals: DOAJ Articles Arctic Bering Sea Canada International Journal of Environmental Research and Public Health 16 5 695 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
subsistence food traditional diet Indigenous people environmental contaminants PTS POPs DDT PCB food safety limits coastal Chukotka Russian Arctic Medicine R |
spellingShingle |
subsistence food traditional diet Indigenous people environmental contaminants PTS POPs DDT PCB food safety limits coastal Chukotka Russian Arctic Medicine R Alexey A. Dudarev Valery S. Chupakhin Sergey V. Vlasov Sveta Yamin-Pasternak Traditional Diet and Environmental Contaminants in Coastal Chukotka II: Legacy POPs |
topic_facet |
subsistence food traditional diet Indigenous people environmental contaminants PTS POPs DDT PCB food safety limits coastal Chukotka Russian Arctic Medicine R |
description |
The article is the second in the series of four that present the results of a study on environmental contaminants in coastal Chukotka, conducted in the context of a multi-disciplinary investigation of indigenous foodways in the region. The article presents the results of the analysis of legacy Persistent Organic Pollutants (POPs) found in the samples of locally harvested food and indoor matters, collected in 2016 in coastal Chukotka. Temporal trends and circumpolar comparisons of POPs in food have been carried out. Estimated daily intakes (EDIs) of POPs by local food consumption were calculated based on the food intake frequencies (questionnaire data). Concentrations of the studied legacy POPs in marine mammal blubber were relatively high (up to 100⁻200 µg/kg ww) but not exceeding the allowable limits. Gray whale blubber and whale mantak were the most contaminated foods, followed by the ringed, spotted and bearded seal blubber, then by walrus blubber and fermented walrus (deboned walrus parts aged in subterranean pits, typically over a period of 6 months). At the backdrop of general decrease or invariability (compared to the previous coastal Chukotka study 15 years ago) of the majority of POPs, an increasing tendency of HCB, mainly in marine mammals, were noted. Legacy POPs in marine mammals sampled in Chukotka were generally much lower than in those sampled in Alaska and northern Canada. We suggest that the Alaska Coastal Current from the Bering Sea plays a major role in this phenomenon. Analyses of the additional sources of in-home food contamination (home-brewed alcohol, domestic insecticides) have revealed relatively high levels of HCHs, DDTs and PCBs, which still represent a share of dietary exposure of local people to POPs. |
format |
Article in Journal/Newspaper |
author |
Alexey A. Dudarev Valery S. Chupakhin Sergey V. Vlasov Sveta Yamin-Pasternak |
author_facet |
Alexey A. Dudarev Valery S. Chupakhin Sergey V. Vlasov Sveta Yamin-Pasternak |
author_sort |
Alexey A. Dudarev |
title |
Traditional Diet and Environmental Contaminants in Coastal Chukotka II: Legacy POPs |
title_short |
Traditional Diet and Environmental Contaminants in Coastal Chukotka II: Legacy POPs |
title_full |
Traditional Diet and Environmental Contaminants in Coastal Chukotka II: Legacy POPs |
title_fullStr |
Traditional Diet and Environmental Contaminants in Coastal Chukotka II: Legacy POPs |
title_full_unstemmed |
Traditional Diet and Environmental Contaminants in Coastal Chukotka II: Legacy POPs |
title_sort |
traditional diet and environmental contaminants in coastal chukotka ii: legacy pops |
publisher |
MDPI AG |
publishDate |
2019 |
url |
https://doi.org/10.3390/ijerph16050695 https://doaj.org/article/900d2f090e9846afafd00dbba3c0d4b1 |
geographic |
Arctic Bering Sea Canada |
geographic_facet |
Arctic Bering Sea Canada |
genre |
Arctic bearded seal Bering Sea Chukotka Alaska walrus* |
genre_facet |
Arctic bearded seal Bering Sea Chukotka Alaska walrus* |
op_source |
International Journal of Environmental Research and Public Health, Vol 16, Iss 5, p 695 (2019) |
op_relation |
https://www.mdpi.com/1660-4601/16/5/695 https://doaj.org/toc/1660-4601 1660-4601 doi:10.3390/ijerph16050695 https://doaj.org/article/900d2f090e9846afafd00dbba3c0d4b1 |
op_doi |
https://doi.org/10.3390/ijerph16050695 |
container_title |
International Journal of Environmental Research and Public Health |
container_volume |
16 |
container_issue |
5 |
container_start_page |
695 |
_version_ |
1766346577102766080 |