Publication 2019: Risk perception and human health risk in rural communities consuming unregulated well water in Saskatchewan, Canada
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Section 1: Publication
Authorship
Ford, L., Waldner, C., Sanchez, J., & Bharadwaj, L.
Title
Risk perception and human health risk in rural communities consuming unregulated well water in Saskatchewan, Canada
Year
2019
Publication Outlet
Risk Analysis, 39(11), 2559-2575
DOI
Citation
Ford, L., Waldner, C., Sanchez, J., & Bharadwaj, L. (2019). Risk perception and human health risk in rural communities consuming unregulated well water in Saskatchewan, Canada. Risk Analysis, 39(11), 2559-2575.
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Section 2: Abstract
Abstract
Rural communities dependent on unregulated drinking water are potentially at increased health risk from exposure to contaminants. Perception of drinking water safety influences water consumption, exposure, and health risk. A community-based participatory approach and probabilistic Bayesian methods were applied to integrate risk perception in a holistic human health risk assessment. Tap water arsenic concentrations and risk perception data were collected from two Saskatchewan communities. Drinking water health standards were exceeded in 67% (51/76) of households in Rural Municipality #184 (RM184) and 56% (25/45) in Beardy's and Okemasis First Nation (BOFN). There was no association between the presence of a health exceedance and risk perception. Households in RM184 or with an annual income >$50,000 were most likely to have in-house water treatment. The probability of consuming tap water perceived as safe (92%) or not safe (0%) suggested that households in RM184 were unlikely to drink water perceived as not safe. The probability of drinking tap water perceived as safe (77%) or as not safe (11%) suggested households in BOFN contradicted their perception and consumed water perceived as unsafe. Integration of risk perception lowered the adult incremental lifetime cancer risk by 3% to 1.3 × 10−5 (95% CI 8.4 × 10−8 to 9.0 × 10−5) for RM184 and by 8.9 × 10−6 (95% CI 2.2 × 10−7 to 5.9 × 10−5) for BOFN. Probability of exposure to arsenic concentrations >1:100,000, negligible cancer risk, was 23% for RM184 and 22% for BOFN.
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Section 4: Computed Information
AZLine
FORD-L-WALDNER-C-SANCHEZ-J-BHARADWAJ-L-2019-RISK-PERCEPTION-AND-HUMAN-HEALTH-RISK-IN-RURAL-COMMUNITIES-CONSUMING-UNREGULATED-WELL-WATER-IN-SASKATCHEWAN-CANADAÂ-RISK-ANALYSISÂ-3911-2559-2575
AZHash
34ed7a5c875c5e17e4ee4805e8e4bc6c