Particulate Matter
NAAQS Revisions
EPA Particulate Matter NAAQS Proposal
Fact sheet
- 12/21/05
Basis for EPA decision
- 12/21/05
PM NAAQS proposal
- 12/21/05
Comments on EPA Proposal
WESTAR comments
New Mexico comments
Oregon comments
Washington NAAQS comments
Washington PM monitoring comments
NESCAUM comments on NAAQS proposal
NESCAUM comments on PM monitoring proposal
Comments from 4 western tribal representatives
California comments
Nevada comments
Background Documents
CASAC Recommendations on Coarse Standard
- September 2005
Link to CASAC Review of Staff Paper
- June 2005
Link to PM Staff Paper
- June 2005
Link to PM Criteria Documents
- August 2004
Link to EPA PM webpage
EPA Fact Sheet
State Comments on EPA Particulate Matter Staff Paper
California
New Mexico
Arizona
Nevada
Alaska
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