Wildfire Smoke and Outdoor Workers

Cal/OSHA emergency standard CCR 8 §5141.1 Protection from Wildfire Smoke ensures protections for outdoor workers, which includes field researchers, ahead of wildfire season.

This emergency standard requires employers to provide appropriate and effective respirators when the employer reasonably expects employees will be exposed to wildfire smoke.


Determining PM2.5 AQI Value

UC Davis relies on Air Quality Index (AQI) data from US EPA Air Now - cfpub.epa.gov/airnow/


During A Smoke Event

Safety Services will provide additional guidance to help departments meet Cal/OSHA requirements.


Get N-95 Masks

Review your departmental supply of N-95 masks for outdoor workers and have enough ready to maintain operations through two weeks of smoke conditions. Test your communications plan before an emergency to notify your outdoor workers when a smoke event is coming and how to pick up a mask for voluntary use.

Take 10-minute N-95 training if you anticipate performing high-exertion labor outdoors.


Building Ventilation and Filtration

It is critical to keep doors and windows closed when it's smoky outdoors.