Alkylated polycyclic aromatic hydrocarbons are the largest contributor to polycyclic aromatic compound concentrations in traditional foods of the Bigstone Cree Nation in Alberta, Canada
| Autor: | Josie C. Auger, Janelle Marie Baker, Melissa A. McKinney, Benjamin D. Barst, Nasrin Golzadeh |
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| Rok vydání: | 2020 |
| Předmět: |
Usnea
010504 meteorology & atmospheric sciences biology Health Toxicology and Mutagenesis Alberta canada General Medicine 010501 environmental sciences 15. Life on land Toxicology biology.organism_classification 01 natural sciences Pollution Alberta 13. Climate action Environmental chemistry Oil sands Environmental science Animals Humans Oil and Gas Fields Polycyclic Compounds Polycyclic Aromatic Hydrocarbons 0105 earth and related environmental sciences Environmental Monitoring |
| Zdroj: | Environmental pollution (Barking, Essex : 1987). 275 |
| ISSN: | 1873-6424 |
| Popis: | Rising global demand for energy promotes extensive mining of natural resources, such as oil sands extractions in Alberta, Canada. These extractive activities release hazardous chemicals into the environment, such as polycyclic aromatic compounds (PACs), which include the parent polycyclic aromatic hydrocarbons (PAHs), alkylated PAHs, and sulfur-containing heterocyclic dibenzothiophenes (DBTs). In areas adjacent to industrial installations, Indigenous communities may be exposed to these PACs through the consumption of traditional foods. Our objective was to evaluate and compare the concentrations of total PACs (∑PAC), expressed as the sum of the 16 U.S. EPA priority PAHs (∑PAH), 49 alkylated PAHs (∑alkyl-PAH), and 7 DBTs (∑DBT) in plant and animal foods collected in 2015 by the Bigstone Cree Nation in Alberta, Canada. We analyzed 42 plant tissues, 40 animal muscles, 5 ribs, and 4 pooled liver samples. Concentrations of ∑PAC were higher in the lichen, old man’s beard (Usnea spp.) (808 ± 116 ng g−1 w.w.), than in vascular plants, and were also higher in smoked moose (Alces alces) rib (461 ± 120 ng g−1 w.w.) than in all other non-smoked animal samples. Alkylated-PAHs accounted for between 63% and 95% of ∑PAC, while the concentrations of ∑PAH represented 4%–36% of ∑PAC. Contributions of ∑DBT to ∑PAC were generally lowest, ranging from |
| Databáze: | OpenAIRE |
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