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OAR Policy and Guidance Metarecord

Document Title/Subject:
Chemical Speciation of PM2.5 in Urban and Ruran Areas: Background Information
Related Documents:
Guidance for Designating Areas for Implementation of the National Air Quality Standards for Fine Particles
Signed by: unsigned

Signature Date:

Contact:
Fred Dimmick
919-541-5537

Filename(s):
http://www.epa.gov/ttn/oarpg/t1/reports/cspm25_bid.pdf
URL(s):



 

Regulatory Authority:
Title 1
Division/Director:
Air Quality Strategies and Standards Division (OAQPS) / Lydia Wegman
Submitted By:
whitfield.gail
OGC Contact:
Kevin McLean
OGC Phone#:
919-564-5564
Internet Contact:
Jeff Clark
Document Type:
Background Information Documents
EPA Document Number:

Federal Register:
Supersedes:
Subject Category:
PM
Keywords:
Particulate matter
urban areas
rural areas
IMPROVE
monitoring
measurements
Terms:
Air quality
Clean Air Act
CAA
Abstract:
Data from the Interagency Monitoring of PROtected Visual Environment (IMPROVE) and the Speciation Trends Network (STN) are used to analyze the chemical composition of PM2.5 and to explore issues associated with interpretation of their measurements. The data from the largely rural IMPROVE network and urban STN are used to examine spatial patterns and to develop estimates of the local urban excess over the regional background concentrations. This work will give some insights into which of the chemical constituents are driving urban excess of PM2.5 mass in different regions of the United States.

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