- π₯ Wildfire smoke's contribution to PM2.5 levels in the US has significantly increased since the mid-2000s.
- π In recent years, wildfire smoke has accounted for up to 50% of PM2.5 exposure in western regions.
- π This is a stark rise from less than 20% a decade ago, highlighting a growing environmental concern.
- ποΈ The changing climate and land management practices are likely influencing these trends.
- π The study underscores the urgent need for improved air quality management and wildfire mitigation strategies.