EPA Environmental Dataset Gateway
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Open/Close section Identification Information
Title: National Air Toxics Assessment - 2005, EPA Region 2 (EPA.AIR.NATA99_R2)
Abstract: This data layer is based on the model results of the 1999 National-Scale Assessment (N-SA), a part of the National Air Toxics Assessment (NATA), conducted by EPA's Office of Air Quality Planning & Standards (OAQPS). The assessment used computer models to estimate ambient air toxics concentrations and population exposures nationwide. Computer models were used since direct measurements of ambient air toxics concentrations are limited and direct personal exposure measurements are even more limited.
Purpose: These data were used to create the air toxics cancer/noncancer risk layer which are used in EPA Region 2 as an indicator for environmental burden analysis.
Open/Close section Time Period of Content
Publication Date: 2002
Progress: Completed
Frequency: irregular
Open/Close section Single Date
Date: 1999
Currentness: Publication date
Open/Close section Spatial Domain
West Bounding Longitude: -79.762590
East Bounding Longitude: -71.777490
North Bounding Latitude: 45.015849
South Bounding Latitude: 40.477386
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Open/Close section Constraints
License https://edg.epa.gov/EPA_Data_License.htm
Access: Data Are Restricted to Internal EPA Personnel Only and State Partners.
Use: These data should not be distributed to users unless distribution is explicitly granted. Please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the most recent copy of both data and metadata. Acknowledgement of the EPA would be appreciated.
Open/Close section Theme Keywords
Theme Topics: Environment and Conservation, Cancer risk, National Air Toxics Assessment, Hazard Index
Open/Close section Contact Information
Originator: US Environmental Protection Agency Region 2
Organization: EPA Region 2/GIS Team
Person: Daisy Tang
Email: r2gisdata@epamail.epa.gov
Telephone: 212-637-3592
Open/Close section Metadata Reference Information
Metadata Date Stamp: 2006-05-04
Metadata Standard Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
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