Regulation & law · 16/09/2020

EPA Determines Los Angeles-South Coast Air Basin Failed to Meet 2006 Fine Particulate Matter Standards

The Environmental Protection Agency (EPA) has found that the Los Angeles-South Coast Air Basin in California did not meet the 2006 24-hour fine particulate matter (PM 2.5) national ambient air quality standards by the December 31, 2019 deadline, requiring the state to revise its California State Implementation Plan (SIP) to achieve attainment within the prescribed time frame.