EPA Finds San Joaquin Valley Failed to Meet 1997 PM 2.5 Standards

Summary

The Environmental Protection Agency (EPA) has found that the San Joaquin Valley in California failed to meet the 1997 air quality standards for fine particulate matter (PM 2.5) by the deadline of December 31, 2015. As a result, the state must revise its air quality plan to achieve faster attainment of these standards and reduce emissions by 5% annually.