Energy & environment · 01/04/2010Updated: 10/17/2026 · 1 min read

EPA Extends Public Comment Period for Particulate Matter National Ambient Air Quality Standards Review

The Environmental Protection Agency (EPA) is extending the public comment period for a draft assessment document related to the review of the National Ambient Air Quality Standards for Particulate Matter, originally scheduled to end on April 12, 2010, but now set to close on April 26, 2010, to provide stakeholders and the public with additional time to analyze and submit comments.