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Record Search Query: ServiceParameters>MODELS>REGULATORY MODELS

Assessment System for Population Exposure Nationwide
Entry ID: EPA_ASPEN

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Summary
Abstract: The Assessment System for Population Exposure Nationwide (ASPEN) consists of a
dispersion and a mapping module. The dispersion module is a Gaussian
formulation based on ISCST3 for estimating ambient annual average
concentrations at a set of fixed receptors within the vicinity of the emission
source. The mapping module produces a concentration at each census tract. Input
data needed are emissions data, meteorological data and census tract data. The
Emissions Modeling System for Hazardous Pollutants (EMS-HAP) is needed to
process the emission inputs into the ASPEN model or the ISC3 model. The ASPEN
model was used in estimating annual ambient concentrations for air toxics
pollutant in the National Air Toxics Assessment (NATA) Study.

[Summary provided by the EPA.]
Related URL
Description: Support Center for Regulatory Air Models Home Page.
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Service Citation
Originators: U.S. Environmental Protection Agency
Title: Assessment System for Population Exposure Nationwide
Provider: U.S. Environmental Protection Agency
URL: http://www.epa.gov/scram001/dispersion_alt.htm#aspen
Service Keywords
MODELS >COMPONENT PROCESS MODELS Parameter Definition
MODELS >REGULATORY MODELS Parameter Definition
MODELS >ATMOSPHERIC CHEMISTRY MODELS Parameter Definition

Ancillary Keywords
Air Quality Models
EPA
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Service Provider
EPA/TTN/SCRAM > Support Center for Regulatory Air Models, Technology Transfer Network, U.S. Environmental Protection Agency Supplemental Info
Service Organization URL: http://www.epa.gov/ttn/scram/

Service Provider Personnel
Name: DENNIS ATKINSON
Phone: 919-541-0518
Fax: 919-541-0044
Email: atkinson.dennis at epa.gov
Contact Address:
US EPA
Office of Air Quality Planning and Standards (OAQPS)
Technology Transfer Network
Mail Code D143-02
City: Research Triangle Park
Province or State: NC
Postal Code: 27711
Country: USA
Distribution Media
Distribution_Media: Online
Fees: No fees
Personnel
TYLER B. STEVENS
Role: SERF AUTHOR
Phone: (301) 614-6898
Fax: 301-614-5268
Email: Tyler.B.Stevens at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
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Creation and Review Dates
SERF Creation Date: 2006-04-25
SERF Last Revision Date: 2007-05-31
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Responsible NASA Official:  Lola Olsen
Last Updated:  December 2014