Scheduled Maintenance
Air District systems will undergo planned maintenance from 8am Friday 4/28 through 11pm Sunday 4/30.
There may be disruptions in some services. We apologize for any inconvenience.

Flare Trends and Data

View more than 10 years of data about flaring from the five Bay Area refineries. See how often and how much gas is flared, and view bar graphs showing emissions from flaring.

Flare Monitoring Data

The graphs on this page are based on the monthly reports that each refinery submits to the Air District. The monitoring data for each flare are subject to flare monitoring and reporting requirements.

General Information

Emissions by Pollutant

These graphs show emissions for methane, non-methane hydrocarbons, and sulfur dioxide. The emissions are calculated from direct vent gas flows, not by measuring actual emissions. The vertical axis shows the estimated tons of pollutant emissions per year.

TPY = tons per year

Contact Us

Compliance and Enforcement

415 749-4795

Contact Us

Spare the Air Status
Spare the Air Status
  • Saturday,

    No Spare the Air Alert in Effect

  • Sunday,

    No Spare the Air Alert in Effect

Last Updated: 5/7/2015