The Air District is responsible for regulating air quality in the
San Francisco Bay Area. Our jurisdiction covers nine
counties and 101 cities.
We have made tremendous progress improving air quality over the
last five decades. However, the predicted increase of
extreme hot days due to climate change could substantially
increase air pollution and reverse our accomplishments to date.
The Air District is committed to addressing climate change and is
implementing numerous initiatives to reduce greenhouse gas
Adopted the nations’ s first
greenhouse gas fee on air pollution sources located in the