Napa Air Monitoring Station | California Air Resources Board | Napa, CA

The Napa Air Monitoring Station is a regulatory air quality monitoring facility located at 2552 Jefferson Ave., Napa, California, United States. It is operated by the California Air Resources Board (CARB) and contributes to the US EPA's Air Quality System (AQS) network, which monitors criteria pollutants and other atmospheric parameters to ensure compliance with National Ambient Air Quality Standards (NAAQS). As part of California's extensive air monitoring network, this station likely measures pollutants such as ozone, particulate matter (PM2.5 and PM10), nitrogen dioxide, sulfur dioxide, carbon monoxide, and lead, along with meteorological parameters. The station operates under the regulatory framework of the Clean Air Act and California's stringent air quality laws, providing data used for public health advisories and emission reduction strategies. The Napa station serves the local community by providing real-time air quality data, supporting research on regional air pollution patterns, and helping to assess the effectiveness of air quality management programs. Its location in the Napa Valley, an area known for agriculture and wine production, also contributes to understanding the impact of agricultural emissions and wildfire smoke on air quality.

The Napa Valley region experiences air quality challenges from vehicle emissions, agricultural activities, and occasional wildfire smoke. The monitoring station's parameter coverage typically includes criteria pollutants and meteorological data, ensuring representative siting for urban and rural influences. Reporting continuity is maintained through CARB's quality assurance protocols, supporting long-term trend analysis and regulatory compliance under the US EPA AQS framework.