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Particulate Matter (PM) Pollution

Public Hearing on Proposal to Retain the National Ambient Air Quality Standards for Particulate Matter

EPA held a public hearing via teleconference on the proposal to retain the National Ambient Air Quality Standards for Particulate Matter.  

The hearing took place on May 20, 21,22 and 27, 2020.  Read the Federal Register notice announcing the hearing.

There were two sessions each day*. 

  • The first session will be held 9:00 a.m. - 1:00 p.m. (eastern time). 
  • The second session will be held 3:00 - 7:00 p.m. (eastern time).

*only a morning session on Friday, May 22, 2020.

Pre-registration for the hearing is now closed.

View lists of pre-registered speakers.

If you need assistance, please contact Regina Chappell by email: (preferred); or by telephone: 919- 541-3650.