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OAR Policy and Guidance Metarecord

Document Title/Subject:
Particulate Matter: Preliminary Draft Staff Paper: Additional Figures for Chapter 5 (Denver, CO and Phoenix, AZ Images)
Related Documents:
Signed by: Unsigned

Signature Date:

Contact:
Rich Damberg

Filename(s):
http://www.epa.gov/ttn/oarpg/t1/reports/denver&phoenix-vis8images.doc

URL(s):



Regulatory Authority:
Title 1
Division/Director:
Air Quality Strategies and Standards Division (OAQPS) / Lydia Wegman
Submitted By:
damberg.rich
OGC Contact:
Gerald Gleason
OGC Phone#:
202-564-5578
Internet Contact:
Jeff Clark
Document Type:
Staff Papers
EPA Document Number:

Federal Register:
Supersedes:
Subject Category:
AIR
Keywords:
Particulate matter
visibility
particulate matter standards
Terms:
Air quality
Abstract:
As required under the Clean Air Act, the periodic review of the national ambient air quality standards (NAAQS) for particulate matter (PM) is now underway. EPA is now releasing a preliminary draft PM Staff Paper for public and peer review. Chapter 5 of the preliminary draft Staff Paper includes preliminary assessments of scientific and technical information and proposed future analyses or assessments of visibility data or information. This file includes a series of photographic representations of visual air quality in Denver, CO and Phoenix, AZ.

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