Risk assessment of dietary lead exposure among First Nations people living on-reserve in Ontario, Canada using a total diet study and a probabilistic approach.

https://arctichealth.org/en/permalink/ahliterature286494
Source
J Hazard Mater. 2017 Oct 05;344:55-63
Publication Type
Article
Date
Oct-05-2017
Author
Amanda K Juric
Malek Batal
Will David
Donald Sharp
Harold Schwartz
Amy Ing
Karen Fediuk
Andrew Black
Constantine Tikhonov
Hing Man Chan
Laurie Chan
Source
J Hazard Mater. 2017 Oct 05;344:55-63
Date
Oct-05-2017
Language
English
Publication Type
Article
Abstract
Indigenous peoples have elevated risk of lead (Pb) exposure as hunted traditional food can be contaminated with lead-containing ammunition. Recent scientific consensus states that there is no threshold level for Pb exposure. The objective of this study was to estimate dietary exposure to Pb among First Nations living on-reserve in the province of Ontario, Canada. A total diet study was constructed based on a 24-h recall and Pb concentrations for traditional foods from the First Nations Food, Nutrition, and Environment Study (FNFNES) and Pb concentrations in market foods from Health Canada. A probabilistic assessment of annual and seasonal traditional food consumption was conducted. Results indicate that traditional foods, particularly moose and deer meat. are the primary source of dietary Pb intake (73%), despite providing only 1.8% of the average caloric intake. The average dietary Pb exposure (0.21µg/kg/d) in the First Nations population in Ontario was 1.7 times higher than the dietary Pb exposure in the general Canadian population. Pb intake was associated with an estimated average increase in systolic blood pressure of 1.2mmHg. These results indicate that consumption of foods hunted with Pb containing ammunition and shot puts the population at elevated risk of Pb toxicity.
PubMed ID
29031094 View in PubMed
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