Cal/OSHA has an emergency regulation in place to protect workers
from wildfire smoke

Outdoor workers who have questions regarding smoke impacts due to wildfires should first contact their employer. Employers and/or employees who have additional questions or need assistance with programs to protect workers exposed to smoke from wildfires can call Cal/OSHA's Consultation Services Branch at 800-963-9424. Complaints about workplace safety and health hazards can be filed confidentially with a Cal/OSHA district office.

Worker Safety and Health in Wildfire Regions

Per the CalOSHA regulation, you may check AQI forecasts and current AQI for PM2.5 from the following sources: