Nonattainment Area - Particulate Matter - 2.5 Annual (1997 Standard)

The Nonattainment Area - Particulate Matter-2.5 Annual (1997) dataset was updated on June 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 areas identified in the U.S. where annual particulate matter (PM2.5) levels have not met the National Ambient Air Quality Standards (NAAQS) established in 1997 for particulate matter (PM2.5) and have been designated "nonattainment areas (NAA)". The 1997 Primary Annual PM-2.5 NAAQS is revoked in attainment and maintenance areas for that NAAQS. For additional information see the PM-2.5 NAAQS SIP Requirements Final Rule, effective October 24, 2016 (https://www.govinfo.gov/link/fr/81/58009). 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-pm-25-1997-area-information. A data dictionary, or other source of attribute information, is accessible at https://doi.org/10.21949/1529068

Data and Resources

Field Value
access_constraints ["Access Constraints: unrestricted"]
bbox-east-long -71.8566403472533
bbox-north-lat 48.4750797101799
bbox-south-lat 32.6605965914422
bbox-west-long -121.585953038079
contact-email Cakir.Halil@epa.gov
coupled-resource []
dataset-reference-date [{"type": "creation", "value": "2004-07-01"}]
frequency-of-update weekly
guid Nonattainment Area - Particulate Matter - 2.5 Annual (1997 Standard)
licence ["This NTAD dataset is a work of the United States government as defined in 17 U.S.C. \u00c2\u00a7 101 and as such are not protected by any U.S. copyrights.\u00c2\u00a0This work is available for unrestricted public use."]
metadata-date 2025-07-24
metadata-language eng; USA
metadata_type geospatial
old-spatial {"type": "Polygon", "coordinates": [[[-121.585953038079, 32.6605965914422], [-71.8566403472533, 32.6605965914422], [-71.8566403472533, 48.4750797101799], [-121.585953038079, 48.4750797101799], [-121.585953038079, 32.6605965914422]]]}
progress onGoing
resource-type dataset
responsible-party [{"name": "Environmental Protection Agency (EPA)", "roles": ["pointOfContact"]}]
spatial {"type": "Polygon", "coordinates": [[[-121.585953038079, 32.6605965914422], [-71.8566403472533, 32.6605965914422], [-71.8566403472533, 48.4750797101799], [-121.585953038079, 48.4750797101799], [-121.585953038079, 32.6605965914422]]]}
spatial_harvester true
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • 1997
  • 2.5
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • air
  • air quality
  • annual
  • area
  • atlas
  • attainment
  • boundary
  • database
  • designations
  • environment
  • environmental
  • epa
  • matter
  • naa
  • naaqs
  • national
  • national transportation atlas database
  • non
  • nonattainment
  • ntad
  • oar-oaqps
  • particulate
  • particulate matter
  • particulate matter 2.5
  • planning
  • pm 2.5
  • pm2.5
  • pollutant
  • pollutants
  • polygon
  • standards
  • transportation
  • usa
  • vector
isopen False
metadata_created 2025-09-24T05:56:51.848552
metadata_modified 2025-09-24T05:56:51.848560
notes The Nonattainment Area - Particulate Matter-2.5 Annual (1997) dataset was updated on June 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 areas identified in the U.S. where annual particulate matter (PM2.5) levels have not met the National Ambient Air Quality Standards (NAAQS) established in 1997 for particulate matter (PM2.5) and have been designated "nonattainment areas (NAA)". The 1997 Primary Annual PM-2.5 NAAQS is revoked in attainment and maintenance areas for that NAAQS. For additional information see the PM-2.5 NAAQS SIP Requirements Final Rule, effective October 24, 2016 (https://www.govinfo.gov/link/fr/81/58009). 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-pm-25-1997-area-information. A data dictionary, or other source of attribute information, is accessible at https://doi.org/10.21949/1529068
num_resources 2
num_tags 44
title Nonattainment Area - Particulate Matter - 2.5 Annual (1997 Standard)