Air Quality Update for September 11

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Announced: September 10, 2020, 4:45 p.m.

To: Faculty & Staff
From: Environmental Health & Safety

The North Complex Fire continues to burn in eastern Butte County. The weather has been cooperative for the firefighters who continue to make progress on the fire. According to Butte County Air Quality Management District, “South winds will continue to transport smoke into communities downwind of the fires in our area. Smoke is expected to settle in valleys overnight leading to temporary impacts in some locations that could be greater than forecasted.”  

The Butte County Air Quality Management District and AirNow have listed tomorrow’s forecasted Air Quality Index (AQI) as “Unhealthy.” This level carries the advisory that “people with heart or lung disease, older adults, and children should avoid prolonged or heavy exertion. Everyone else should reduce prolonged or heavy exertion.” 

The University has applied the Environmental Protection Agency’s advisory to campus operations as follows:  

If the AQI is 151 – 200 (unhealthy), EVERYONE must be concerned. Campus remains open. Campus events and activities scheduled outdoors that involve prolonged or heavy exertion will be rescheduled to a time when the air quality is better. Outdoor work and prolonged or heavy exertion should be limited where practicable. Employees who work outdoors for more than one hour should be reassigned or provided N95 masks for voluntary use. Indoor work and/or activities will continue as scheduled.  

While on campus, the best air quality is inside buildings due to air filtration. All individuals should limit their time outdoors, and if outdoors choose less strenuous activities.          

Environmental Health and Safety (EHS) will continue monitoring the AQI. Updated guidance will be sent accordingly. For additional information about air quality, please visit the Environmental Health & Safety website. You can also monitor current quality conditions at AirNow.    

If you have any questions, please contact your manager or EHS Director Marvin Pratt at 530-898-5126