Classification index
Unhealthy (AQI 151–200)
Summary: Everyone may begin to experience health effects, with higher risk for sensitive groups.
Health implications
Respiratory and cardiovascular symptoms become more likely, especially with sustained outdoor exertion.
Recommended actions
- Reduce outdoor exposure and intensity.
- Prioritize filtered indoor environments.
- Use masks for essential outdoor tasks during smoke episodes.
For schools and workplaces
Move strenuous programs indoors and increase safety messaging frequency.