Mitigating wildfire smoke inside homes: Evidence from Oregon, September 2020
Charles Castillo1, Ruth Dittrich2, Vivek Shandas3
1University of Portland, Portland, Oregon, USA.
Risk Analysis : an Official Publication of the Society for Risk Analysis
|November 12, 2023
Summary
Wildfire smoke poses health risks, but mitigation measures like staying indoors are common. Socioeconomic factors and access to information influence the adoption of other protective actions.
Area of Science:
- Environmental Health
- Public Health
- Respiratory Health
Background:
- Wildfire smoke can travel long distances, causing significant respiratory and cardiovascular health issues.
- Exposure to wildfire smoke necessitates effective mitigation strategies at the household level.
Purpose of the Study:
- To assess the implementation of wildfire smoke mitigation measures using household survey data.
- To identify demographic and socioeconomic factors associated with the adoption of these measures.
- To understand preferred communication channels for air quality information across different age groups.
Main Methods:
- Household survey data (n=543) collected in response to the September 2020 Oregon wildfires.
- Assessment of six common smoke mitigation strategies: staying indoors, closing windows/doors, using HVAC, air purifiers, changing filters, and wearing masks.
- Statistical analysis of socioeconomic demographics, exposure days, and information access linked to implementation.
Main Results:
- High implementation rates for staying indoors and keeping windows/doors closed.
- Significant variations in implementing other measures based on socioeconomic demographics.
- Income, number of exposure days, and access to information positively correlated with mitigation measure adoption.
Conclusions:
- While basic measures are widely adopted, socioeconomic factors and information access play a crucial role in implementing advanced smoke mitigation.
- Tailoring communication strategies based on age-group preferences (e.g., TV for older adults, texts for all) can improve engagement.
- Findings can inform targeted public health campaigns for effective wildfire smoke preparedness and response.
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