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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 in the documents below 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(41 Kb PDF, 8 pgs, revised 4/24/2018). Flare data posted to this page is subject to change when new information is obtained by the Air District.
General Information
- Frequency of Flaring Events(95 Kb PDF, 1 pg, posted 2/22/2024) (2005-2023)
- Magnitude of Flaring(94 Kb PDF, 1 pg, posted 2/22/2024) (2005-2023) TPY = tons per year
- Amount of Vent Gas Flared(88 Kb PDF, 1 pg, posted 2/22/2024) (2005-2023) MMSCF = million standard cubic feet
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.
- Refinery Flaring CH4 Emissions(97 Kb PDF, 1 pg, posted 2/22/2024) (methane) (2005-2023)
- Refinery Flaring NMHC Emissions(98 Kb PDF, 1 pg, posted 2/22/2024) (non-methane hydrocarbons) (2005-2023)
- Refinery Flaring SO2 Emissions(97 Kb PDF, 1 pg, posted 2/22/2024) (sulfur dioxide) (2005-2023)
TPY = tons per year
Contact Us
Compliance & Enforcement
General Compliance Information
415.749.4999 compliance@baaqmd.gov
Last Updated: 6/17/2024