Return to search results
Nonattainment Area - Nitrogen Dioxide (NO2 - 1971 Standard)
The Nonattainment Area - Nitrogen Dioxide (NO2-1971) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). This dataset provides detailed information about the nonattainment area for the Nitrogen Dioxide (1971) National Ambient Air Quality Standards (NAAQS). On September 22, 1998 the only Nitrogen Dioxide (1971) nonattainment area was redesignated to maintenance. These data are weekly from an OAQPS internal database. However, that does not necessarily mean the data have changed. For more information about this non-attainment area, please see the website https://www.epa.gov/green-book/green-book-nitrogen-dioxide-1971-area-information. A data dictionary, or other source of attribute information, is accessible at https://doi.org/10.21949/1529064
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| accrualPeriodicity | R/P1W |
| contactPoint |
{
"fn": "Environmental Protection Agency (EPA)",
"@type": "vcard:Contact",
"hasEmail": "mailto:cakir.halil@epa.gov"
}
|
| describedByType | application/octet-steam |
| description | The Nonattainment Area - Nitrogen Dioxide (NO2-1971) dataset was updated on November 30, 2025 by the Environmental Protection Agency (EPA) and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). This dataset provides detailed information about the nonattainment area for the Nitrogen Dioxide (1971) National Ambient Air Quality Standards (NAAQS). On September 22, 1998 the only Nitrogen Dioxide (1971) nonattainment area was redesignated to maintenance. These data are weekly from an OAQPS internal database. However, that does not necessarily mean the data have changed. For more information about this non-attainment area, please see the website https://www.epa.gov/green-book/green-book-nitrogen-dioxide-1971-area-information. A data dictionary, or other source of attribute information, is accessible at https://doi.org/10.21949/1529064 |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Open Data Catalog",
"mediaType": "placeholder/value",
"description": "Web page to view and download dataset. The file download formats available include: ESRI File Geodatabase or Shapefile, GeoPackage, Comma-Seperated Values (CSV), Microsoft Excel, GeoJSON, KML, Feature Collection, and SQLite Geodatabase.",
"downloadURL": "https://doi.org/10.21949/1522200",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "ArcGIS REST Services Directory Feature Server (WFS)",
"mediaType": "placeholder/value",
"description": "complies with OGC WFS Map Service for visualizing geospatial information",
"downloadURL": "https://doi.org/10.21949/1522202",
"describedByType": "application/octet-steam"
}
]
|
| identifier | Nonattainment Area - Nitrogen Dioxide (NO2 - 1971 Standard) |
| isPartOf | National Transportation Atlas Database |
| issued | 2004-07-01T00:00:00.000+00:00 |
| keyword |
[
"NTAD",
"National Transportation Atlas Database",
"National",
"Transportation",
"Atlas",
"Database",
"vector",
"polygon",
"Environment",
"Environmental",
"Planning",
"Boundary",
"Non",
"Attainment",
"Nonattainment",
"Area",
"NAA",
"EPA",
"NAAQS",
"Air",
"Air Quality",
"OAR-OAQPS",
"Designations",
"Standards",
"Pollutant",
"Pollutants",
"Criteria Pollutants",
"Nitrogen",
"Dioxide",
"Nitrogen Dioxide",
"1971",
"USA",
"National"
]
|
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2025-12-13T00:00:00.000+00:00 |
| publisher |
{
"name": "Environmental Protection Agency (EPA)",
"@type": "org:Organization"
}
|
| rights | otherRestrictions |
| spatial | -116.518310969222,32.803119109677,-118.944862498,34.818133491 |
| title | Nonattainment Area - Nitrogen Dioxide (NO2 - 1971 Standard) |
