EPA Proposes 1-Year Extension of Attainment Date for Denver PM-10 Nonattainment Area

Summary

The Environmental Protection Agency (EPA) has proposed a 1-year extension of the attainment date for the Denver, Colorado particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM-10) nonattainment area, based on monitored air quality data and the state's implementation plan.