Oil refineries will be subject to the newly enforced fees. Above, a Wilmington refinery near youth soccer fields. (Luis Sinco / Los Angeles Times) Southern California air regulators have voted to ...

New standards need to be approved by lawmakers, and they won’t be used in permitting or regulatory proceedings for at least another year.

The Valero Refining Co. has been fined the largest-ever penalty by Bay Area air quality regulators for a history of toxic chemical releases and other violations at its Benicia refinery dating back to ...

Pointing to numerous violations of lead pollution standards at the Exide Technologies battery recycling plant even while it's closed, regulators at the South Coast Air Quality Management District are ...