Today's Air Quality
The US EPA and a consortium of partners, including local air districts, operate the AirNow program. AirNow reports air quality using the official U.S. Air Quality Index (AQI), a color-coded index designed to communicate whether air quality is healthy or unhealthy for you. When you know the AQI in your area, you can take steps to protect your health.
To check the AQI we recommend:
- AirNow - regional AQI using government monitors (only).
- Fire.AirNow - local AQI with government monitors and personal sensors.
- How to use AirNow - video by fellow air district, Placer County APCD.
For a detailed look:
Air Monitoring Program
We perform ambient air monitoring for planning and regulatory purposes. Federal regulations require state and local agencies that conduct ambient air monitoring to use specidic federal reference analyzers, to meet specific siting criteria, and to certify data quality to meet the federal regulatory requirements of 40CFR Part58.
The District has three particulate matter (PM-10) sites located in Healdsburg, Cloverdale, and Guerneville. Specific information regarding the monitoring sites is included in the state's Annual Network Monitoring Report, which is reviewed annually by the District and the California Air Resource Board, and approved by EPA.