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A human-health risk assessment of dietary methylmercury exposure in Fort Albany First Nation

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thesis
posted on 21.05.2021, 17:01 by Fatima Ahmed
In Northern First Nations communities, traditional diets are a primary pathway for essential nutrients and exposures to environmental contaminants. Due to long-range transport and industry pollution, Fort Albany First Nation is a community at risk of methylmercury exposures through fish. It’s ability to bioaccumulate, and its neurotoxic and developmental impacts, make its presence a concern. This study assessed five fish species for methylmercury from the Albany River. All species, except for Pike, demonstrated a positive relationship with mercury concentrations increasing with length. A human health risk assessment was conducted and demonstrated twice the risk of exceeding the reference dose for children ages 3 to 6 for all species, and 6 to 11 for all species, excluding Whitefish. It is recommended that vulnerable populations consuming certain species of fish reduce their intakes or encourage community trading. Furthermore, there is a need for more thorough testing for mercury along the river basin

History

Editor

Ryerson University

Language

eng

Degree

Master of Applied Science

Program

Environmental Applied Science and Management

Granting Institution

Ryerson University

LAC Thesis Type

Thesis