Levels of metals and persistent organic pollutants in traditional foods consumed by First Nations living on-reserve in Canada
Abstract Objectives First Nations may have a higher risk of contaminant exposure from the consumption of traditional foods. The objective of this study was to measure concentrations of metals and organochlorines in traditional foods commonly consumed by First Nations in Canada and estimate the risk...
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Online Access: | http://dx.doi.org/10.17269/s41997-021-00495-7 https://link.springer.com/content/pdf/10.17269/s41997-021-00495-7.pdf https://link.springer.com/article/10.17269/s41997-021-00495-7/fulltext.html |
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crspringernat:10.17269/s41997-021-00495-7 2023-05-15T16:15:23+02:00 Levels of metals and persistent organic pollutants in traditional foods consumed by First Nations living on-reserve in Canada Chan, Hing Man Singh, Kavita Batal, Malek Marushka, Lesya Tikhonov, Constantine Sadik, Tonio Schwartz, Harold Ing, Amy Fediuk, Karen Indigenous Services Canada Institute of Indigenous Peoples' Health Canada Research Chairs 2021 http://dx.doi.org/10.17269/s41997-021-00495-7 https://link.springer.com/content/pdf/10.17269/s41997-021-00495-7.pdf https://link.springer.com/article/10.17269/s41997-021-00495-7/fulltext.html en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Canadian Journal of Public Health volume 112, issue S1, page 81-96 ISSN 0008-4263 1920-7476 Public Health, Environmental and Occupational Health General Medicine journal-article 2021 crspringernat https://doi.org/10.17269/s41997-021-00495-7 2022-01-04T14:19:31Z Abstract Objectives First Nations may have a higher risk of contaminant exposure from the consumption of traditional foods. The objective of this study was to measure concentrations of metals and organochlorines in traditional foods commonly consumed by First Nations in Canada and estimate the risk from dietary exposure. Methods Data were collected from the participatory First Nations Food, Nutrition and Environment Study (2008–2018). Traditional food samples were collected by community members and concentrations of metals and organochlorines were measured. The population-weighted mean daily contaminant intake from traditional food items was estimated. Hazard quotients (HQs) were calculated by dividing contaminant intake with the toxicological reference values (TRVs). Results A total of 2061 food samples (different parts and organs) from 221 species were collected. The highest concentrations of cadmium were found in the kidneys of land mammals: moose kidney was the most significant contributor to intake. The meat of land mammals and birds had the highest lead concentrations and were the most significant contributors to intake. Arsenic was highest in seaweed, and prawn was the most significant contributor. Mercury and methyl mercury were highest in harp seal meat, with walleye/pickerel contributing most to intake. Harp seal meat also had the highest p,p′-DDE and PCB concentrations, and ooligan grease and salmon were the most significant contributors to intake. The percentage of adults eating traditional food who exceeded the TRVs was 1.9% for cadmium, 3.7% for lead, 13.6% for arsenic, 0.7% for mercury, and 0% for p,p′-DDE and PCBs. All median HQs, and most 95th percentile HQs, were less than 1. Conclusion These results can be used as a baseline of contaminant levels and exposure in traditional foods for future monitoring programs and to support risk assessment programs. Article in Journal/Newspaper First Nations Harp Seal Springer Nature (via Crossref) Canada Canadian Journal of Public Health 112 S1 81 96 |
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Springer Nature (via Crossref) |
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crspringernat |
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English |
topic |
Public Health, Environmental and Occupational Health General Medicine |
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Public Health, Environmental and Occupational Health General Medicine Chan, Hing Man Singh, Kavita Batal, Malek Marushka, Lesya Tikhonov, Constantine Sadik, Tonio Schwartz, Harold Ing, Amy Fediuk, Karen Levels of metals and persistent organic pollutants in traditional foods consumed by First Nations living on-reserve in Canada |
topic_facet |
Public Health, Environmental and Occupational Health General Medicine |
description |
Abstract Objectives First Nations may have a higher risk of contaminant exposure from the consumption of traditional foods. The objective of this study was to measure concentrations of metals and organochlorines in traditional foods commonly consumed by First Nations in Canada and estimate the risk from dietary exposure. Methods Data were collected from the participatory First Nations Food, Nutrition and Environment Study (2008–2018). Traditional food samples were collected by community members and concentrations of metals and organochlorines were measured. The population-weighted mean daily contaminant intake from traditional food items was estimated. Hazard quotients (HQs) were calculated by dividing contaminant intake with the toxicological reference values (TRVs). Results A total of 2061 food samples (different parts and organs) from 221 species were collected. The highest concentrations of cadmium were found in the kidneys of land mammals: moose kidney was the most significant contributor to intake. The meat of land mammals and birds had the highest lead concentrations and were the most significant contributors to intake. Arsenic was highest in seaweed, and prawn was the most significant contributor. Mercury and methyl mercury were highest in harp seal meat, with walleye/pickerel contributing most to intake. Harp seal meat also had the highest p,p′-DDE and PCB concentrations, and ooligan grease and salmon were the most significant contributors to intake. The percentage of adults eating traditional food who exceeded the TRVs was 1.9% for cadmium, 3.7% for lead, 13.6% for arsenic, 0.7% for mercury, and 0% for p,p′-DDE and PCBs. All median HQs, and most 95th percentile HQs, were less than 1. Conclusion These results can be used as a baseline of contaminant levels and exposure in traditional foods for future monitoring programs and to support risk assessment programs. |
author2 |
Indigenous Services Canada Institute of Indigenous Peoples' Health Canada Research Chairs |
format |
Article in Journal/Newspaper |
author |
Chan, Hing Man Singh, Kavita Batal, Malek Marushka, Lesya Tikhonov, Constantine Sadik, Tonio Schwartz, Harold Ing, Amy Fediuk, Karen |
author_facet |
Chan, Hing Man Singh, Kavita Batal, Malek Marushka, Lesya Tikhonov, Constantine Sadik, Tonio Schwartz, Harold Ing, Amy Fediuk, Karen |
author_sort |
Chan, Hing Man |
title |
Levels of metals and persistent organic pollutants in traditional foods consumed by First Nations living on-reserve in Canada |
title_short |
Levels of metals and persistent organic pollutants in traditional foods consumed by First Nations living on-reserve in Canada |
title_full |
Levels of metals and persistent organic pollutants in traditional foods consumed by First Nations living on-reserve in Canada |
title_fullStr |
Levels of metals and persistent organic pollutants in traditional foods consumed by First Nations living on-reserve in Canada |
title_full_unstemmed |
Levels of metals and persistent organic pollutants in traditional foods consumed by First Nations living on-reserve in Canada |
title_sort |
levels of metals and persistent organic pollutants in traditional foods consumed by first nations living on-reserve in canada |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.17269/s41997-021-00495-7 https://link.springer.com/content/pdf/10.17269/s41997-021-00495-7.pdf https://link.springer.com/article/10.17269/s41997-021-00495-7/fulltext.html |
geographic |
Canada |
geographic_facet |
Canada |
genre |
First Nations Harp Seal |
genre_facet |
First Nations Harp Seal |
op_source |
Canadian Journal of Public Health volume 112, issue S1, page 81-96 ISSN 0008-4263 1920-7476 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.17269/s41997-021-00495-7 |
container_title |
Canadian Journal of Public Health |
container_volume |
112 |
container_issue |
S1 |
container_start_page |
81 |
op_container_end_page |
96 |
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1766001132375638016 |