Release of the Final Integrated Review Plan for the National Ambient Air Quality Standards for Particulate Matter

The Environmental Protection Agency (EPA) is announcing the availability of the final document titled Integrated Review Plan for the National Ambient Air Quality Standards for Particulate Matter (IRP). The IRP presents the planned approach and anticipated schedule for the review of the air quality criteria for particulate matter (PM) and the primary and secondary national ambient air quality standards (NAAQS) for PM. The primary and secondary NAAQS for PM are set to protect the public health and public welfare, respectively, from exposures to PM in ambient air.