Service Description: This feature layer depicts air quality design values for annual fine Particulate Matter 2.5 (PM2.5) at individual monitoring sites from 2013-2022.
Service ItemId: 1412feebf14e4413a4a595afb9ef3a03
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: False
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Description: This US Environmental Protection Agency (US EPA), Office of Air and Radiation (OAR), Office of Air Quality Planning and Standards (OAQPS) feature layer depicts air quality
design values for annual fine
Particulate Matter (PM2.5) at individual monitoring sites from 2013-2022. It was created using
existing published EPA data as of 05/24/2023. A design value is a statistic that describes the air quality status of a given location relative to the level of the National Ambient Air Quality Standards (NAAQS). Design values are defined to be consistent with the individual NAAQS as described in
40 CFR Part 50. Design values are typically used to designate and classify nonattainment areas, as well as to assess progress towards meeting the NAAQS. To view a list of areas designated nonattainment, see
EPA's Green Book site.
Design values are computed and published annually by EPA's Office of Air Quality Planning and Standards and reviewed in conjunction with the EPA Regional Offices. Some of these design values can change after the date of publication for a variety of reasons, including but not limited to: 1) EPA agreement that certain data were influenced by exceptional events and therefore not subject for comparison with the NAAQS, 2) States retroactively entering or changing erroneous data based on later findings, and/or 3) notification of a monitoring issue (e.g. network design, site combination, change in the regulatory status of a monitor) that would prompt a revision.
The information contained in this feature layer is intended for informational use only and does not constitute a regulatory determination by EPA as to whether an area has attained a NAAQS, and has no regulatory effect. To have regulatory effect, a final EPA determination as to whether an area has attained a NAAQS as of its applicable attainment date can be accomplished only after rulemaking that provides an opportunity for notice and comment. No such determination for regulatory purposes exists in the absence of such rulemaking, and this feature layer and its data does not constitute a proposed or final rulemaking.
Copyright Text: US EPA Office of Air and Radiation, Office of Air Quality Planning and Standards, Air Quality Assessment Division, Air Quality Analysis Group (OAR, OAQPS, AQAD, AQAG)
Spatial Reference: 102100 (3857)
Initial Extent:
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YMin: 464866.011612016
XMax: -6577501.59880258
YMax: 7685080.78192137
Spatial Reference: 102100 (3857)
Full Extent:
XMin: -17740568.6864386
YMin: 2003921.39928962
XMax: -7211818.51686944
YMax: 9567842.46285758
Spatial Reference: 102100 (3857)
Units: esriMeters
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