|
Advisory
|
There are visible emissions at the Valero Refinery in Benicia. Air District inspectors are on site investigating and responding to complaints. Report air quality complaints at 800-334-ODOR or online.
|
Advisory
|
Valero Refinery in Benicia notified Air District of a planned shutdown of some refinery equipment beginning 1/31. Odors and/or flaring may occur. Air District inspectors will be closely monitoring. Report air quality complaints: 800-334-ODOR or online.
|
|
|
Learn about the Air District's ambient air monitoring network.
The Air District maintains one of the most comprehensive air quality monitoring networks in the country, consisting of over 30 stations distributed among the nine Bay Area counties.
This network measures concentrations of pollutants for which health-based ambient air quality standards have been set by the U.S. Environmental Protection Agency and the California Air Resources Board. The network also measures concentrations of various pollutants designated as Toxic Air Contaminants by the state of California.
This information is used to determine compliance with state and federal air quality standards, prepare air quality forecasts, develop air quality plans, provide information for permit modeling, prepare environmental impact reports, and track air quality trends.
Pollutants measured by the monitoring network include:
Last Updated: 6/21/2025