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OAR Policy and Guidance Metarecord

Document Title/Subject:
Particulate Matter: First Draft Staff Paper:Attachments
Related Documents:
Signed by: Unsigned

Signature Date:

Contact:
Mary Ross

Filename(s):
URL(s):
http://www.epa.gov/ttn/naaqs/standards/pm/s_pm_cr_sp.html


 

Regulatory Authority:
Title 1
Division/Director:
Air Quality Strategies and Standards Division (OAQPS) / Lydia Wegman
Submitted By:
ross.mary
OGC Contact:
Steven Silverman
OGC Phone#:
202-562-5523
Internet Contact:
Jeff Clark
Document Type:
Staff Papers
EPA Document Number:

Federal Register:
Supersedes:
Subject Category:
AIR
Keywords:
Particulate matter
Terms:
Air quality
Abstract:
This attachment to the Office of Air Quality Planning and Standards First Draft Staff Paper for Particulate Matter includes photographs of four cities -- Chicago, Denver, Phoenix and Washington DC -- at varying PM2.5 concentrations.

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