Folsom
 
Data courtesy of:
 

 
AQI: Good (0 - 50) AQI: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) Action DayAction Day
 
Local Air Quality Resources
Action Day Program | Real-time AQI Data | Today's AQI Forecast
 
State Air Quality Resources
Amador County Air Pollution Control District
American Lung Association (ALA) of California
Antelope Valley Air Quality Management District
BAAQMD Spare the Air 2002
Bay Area Air Quality Management District (BAAQMD)
Butte County Air Pollution Control District
California Air Resources Board (CARB)
California Environmental Protection Agency
California Environmental Protection Agency - Contact Us
Colusa County Air Pollution Control District
El Dorado County Air Quality Management District
Feather River Air Quality Management District
Glenn County Air Pollution Control District
Kern County Air Pollution Control District
Mendocino County Air Quality Management District
Mojave Desert Air Quality Management District
Monterey Bay Unified Air Pollution Control District
North Coast Unified Air Quality Management District
Northern Sierra Air Quality Management District
Placer County Air Pollution Control District
Sacramento Metro Air Quality Management District
Sacramento Metropolitan Air Quality Management District
San Diego County Air Pollution Control District
San Joaquin Valley Air Pollution Control District
San Luis Obispo County Air Pollution Control District
Santa Barbara County Air Pollution Control District
Shasta County Air Quality Management District
South Coast Air Quality Management District
Ventura County Air Pollution Control District
Yolo-Solano Air Quality Management District
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
71 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
101 
Unhealthy for Sensitive Groups
Health Message: Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone
71 
Moderate
Ozone
101 
Unhealthy for Sensitive Groups
Forecast Discussion: Wednesday, an upper-level ridge of high pressure will produce sunny skies and warm temperatures across northern California, enhancing ozone formation. However, light to moderate onshore winds will help to disperse pollutants during the afternoon. Therefore, ozone levels will be Moderate. Thursday, upper-level high pressure will remain over northern California, producing warm temperatures and mostly sunny skies, continuing to enhance ozone formation. Therefore, despite a light onshore flow during the afternoon dispersing some pollutants, ozone levels will be Unhealthy for Sensitive Groups. Friday, an upper-level trough of low pressure will move into northern California, enhancing onshore flow. However, mostly sunny skies will continue to enhance ozone formation. Therefore, ozone levels will be Moderate.

Current Conditions
Air Quality Index (AQI)
observed at 11:00 PDT
53
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 53 Moderate
Ozone 29 Good

Past Air Quality Maps and Data
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Air Quality Maps Archives (by region)

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Spare The Air: Air Alert