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CDFA part of state and local team collaborating to help protect workers from unhealthy air due to wildfire smoke

From a Cal-OSHA news release

Cal/OSHA is reminding employers that California’s protection from wildfire smoke standard is still in effect, and they must take steps to protect their workers from harmful exposure to unhealthy air due to wildfire smoke.

“Employers are obligated to protect their outdoor workers and must evaluate the health hazards posed by wildfire smoke,” said Cal/OSHA Chief Doug Parker. “If employers cannot move operations indoors where air is adequately filtered and they do not have access to respiratory protection, they may need to halt operations until the outdoor air quality improves.”

Smoke from wildfires contains chemicals, gases and fine particles that can harm health. The greatest hazard comes from breathing fine particles in the air (called PM2.5), which can reduce lung function, worsen asthma or other existing heart and lung conditions, and cause coughing, wheezing and difficulty breathing. These types of respiratory conditions also make the effects of COVID-19 more severe.

If employers move operations indoors or into enclosed spaces, they should be sure to follow guidelines for prevention of COVID-19 transmission in the workplace.

When wildfire smoke affects a worksite, employers must monitor the air quality index (AQI) for PM2.5. Employers can monitor the AQI using the following websites:

If the AQI for PM2.5 is 151 or greater, employers must take the following steps to protect employees:

  • Communication – Inform employees of the AQI for PM2.5 and the protective measures available to them.
  • Training and Instruction – Provide effective training and instruction to all employees on the information contained in section 5141.1 Appendix B.
  • Modifications – Implement modifications to the workplace, if feasible, to reduce exposure. Examples include providing enclosed structures or vehicles for employees to work in, where the air is filtered.
  • Changes – Implement practicable changes to work procedures or schedules. Examples include changing the location where employees work or reducing the amount of time they work outdoors or exposed to unfiltered outdoor air.
  • Respiratory protection – Provide proper respiratory protection equipment, such as disposable respirators, for voluntary use. 
    • To filter out fine particles, respirators must be labeled N-95, N-99, N-100, R-95, P-95, P-99, or P-100, and must be labeled as approved by the US National Institute for Occupational Safety and Health (NIOSH).

“Cal/OSHA is working diligently to identify viable available temporary alternatives that would provide workers with an acceptable alternative to a compliant respirator such as an N-95 mask,” added Chief Parker.

CalOES and the California Department of Food and Agriculture are working in partnership to provide approximately one million N-95 masks to help protect farmworkers from wildfire smoke. County Agricultural Commissioners in affected counties will distribute the masks.

If the AQI for PM2.5 exceeds 500, respirator use is required. Employers must ensure employees uses respirators and implement a respiratory protection program as required in California’s respiratory standard. For information or help on developing a respiratory protection program, see Cal/OSHA’s Respiratory Protection Fact Sheet.

Guidance for employers and workers on working safely in conditions with smoke caused by the wildfires is available on Cal/OSHA’s web page, including information for protecting outdoor workers, details on how to protect indoor workers from outdoor air pollution, and frequently asked questions about N95 masks.

Information on current wildfires is available from CalFire and the Incident Information System website.

Cal/OSHA helps protect workers from health and safety hazards on the job in almost every workplace in California. Employers and workers who have questions or need assistance with workplace health and safety programs can call Cal/OSHA’s Consultation Services Branch at 800-963-9424.

Complaints about workplace safety and health hazards can be filed confidentially with Cal/OSHA district offices. Employees with work-related questions or complaints may contact DIR’s Call Center in English or Spanish at 844-LABOR-DIR (844-522-6734).

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