EPA Environmental Dataset Gateway


Open/Close section Identification Information
Title: Diesel Particulate Matter Polygons, US EPA Region 9, 1999, NATA
Abstract: <DIV STYLE="text-align:Left;"><DIV><P><SPAN>The national-scale assessment includes 177 air pollutants (a subset of the air toxics on the Clean Air Act's list of 187 air toxics plus diesel particulate matter (diesel PM)). The assessment includes four steps that focus on the year 1999: - Compiling a national emissions inventory of air toxics emissions from outdoor sources. - Estimating ambient concentrations of air toxics across the United States. - Estimating population exposures across the United States. - Characterizing potential public health risk due to inhalation of air toxics including both cancer and noncancer effects. This data was extracted from the Region 9 dataset to represent the top (4th) quartile of data using the HAPEMTotal value. This data is for use in the NEPAssist project for Region 9.</SPAN></P></DIV></DIV>
Publisher: U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Air Quality Planning and Standards (OAQPS)
Open/Close section Reference System Information
Data Type: Vector
Open/Close section Spatial Domain
West Bounding Longitude: -157.894982
South Bounding Latitude: 21.290355
East Bounding Longitude: -111.580627
North Bounding Latitude: 38.668455
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Open/Close section Constraints
License https://edg.epa.gov/EPA_Data_License.html
Access: Unclassified
Use: <DIV STYLE="text-align:Left;"><DIV><P><SPAN>Data are considered current to the date of the original source material. 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.</SPAN></P></DIV></DIV>
Open/Close section Data Quality Information
Scope (quality information applies to): 005
Open/Close section Data Theme
Theme Topics: Environment and Conservation, Atmosphere and Climatic
Open/Close section Contact Information
Organization: U.S. Environmental Protection Agency, Region 9
Contact Position: OAQPS/HEID
Contact Person: Ted Palma
Email: palma.ted@epa.gov
Address: Air Benefits Cost Group
City: Research Triangle Park
State: NC
Postal Code: 27711
Telephone: 919-541-5470
Open/Close section General Information
Publisher Document Identifier: 6378E0F8-C495-4494-AFC6-B33765155410
Metadata Date Stamp: 2018-02-13
Organization: EPA, Office of Air Quality Planning and Standards (OAQPS)
Organization Role: 007
Open/Close section Metadata Reference Information
Metadata Standard Version: 1.0