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Assessment System for Population Exposure Nationwide
Entry ID: EPA_ASPEN


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.
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Description: Get the Assessment System for Population Exposure Nationwide (ASPEN) code.

Description: User guide for the Assessment System for Population Exposure Nationwide(ASPEN).
Service Citation
Edition: 1.1
Service Keywords
MODELS >COMPONENT PROCESS MODELS Parameter Definition
MODELS >REGULATORY MODELS Parameter Definition
MODELS >ATMOSPHERIC CHEMISTRY MODELS Parameter Definition

Service Provider
EPA/TTN/SCRAM > Support Center for Regulatory Air Models, Technology Transfer Network, U.S. Environmental Protection Agency Supplemental Info
Service Organization URL: https://www.epa.gov/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
Personnel
Role: SERF AUTHOR
Phone: 301-851-8113
Email: Tyler.B.Stevens at nasa.gov
Contact Address:
5700 Rivertech Court
City: Riverdale
Province or State: MD
Postal Code: 20737
Country: USA
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Creation and Review Dates
SERF Creation Date: 2006-04-25
SERF Last Revision Date: 2018-07-12


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