"The California Environmental Protection Agency has released a statewide list of census tracts most burdened by pollution, providing a first-of-its-kind ranking certain to pressure regulators to clean up neighborhoods with long-standing health risks.

Many of the worst pollution pockets identified and mapped by state officials are in the San Joaquin Valley, Los Angeles County and the Inland Empire. Their residents are largely low-income Latinos who have had little power to force improvements in their communities.

By providing the public with an objective accounting of conditions in areas as small as a few thousand residents, Cal/EPA has created a powerful tool to spur regulators to act in highly polluted neighborhoods, state officials and environmental activists say."

Tony Barboza reports for the Los Angeles Times April 22, 2014. [2]