The Valley Air District operates a system of air monitoring stations throughout the Valley which analyze air quality data on an hourly basis. Please click on any of the monitors below to view the current real-time air quality information in your area. To fully understand the information provided at the links below, be sure to read the
Real-Time Air Advisory Network Instructions and Documentation. Some monitors provide both particulate matter (PM) data and ozone data, while other monitors only provide data as indicated. Please be aware that specific locations have not been given due to security reasons. Finally, the RAAN system is designed to monitor the more unhealthy often invisible air pollutants. If you can see or smell smoke or ash, you are being impacted by it and you should stay indoors if possible.
San Joaquin County