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DesignValueServices2020 (FeatureServer)

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Service Description: This GIS dataset describes the air quality status of a given location relative to the level of the National Ambient Air Quality Standards (NAAQS).

Service ItemId: 8b4ea613ae2b4fecbffb21df5d82a7b6

Has Versioned Data: false

Max Record Count: 1000

Supported query Formats: JSON

Supports applyEdits with GlobalIds: False

All Layers and Tables

Layers:

Description: This web service contains layers which depict design values through 2020 for the following: Lead, PM25 Annual, PM10, CO, NO2, Ozone, SO2, and PM25 24-hour. 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). This GIS dataset includes design values for individual monitoring sites, counties, and nonattainment areas, where applicable. Design values are defined to be consistent with the individual NAAQS as described in CFR Part 50. Design values are typically used to designate and classify nonattainment areas, as well as to assess progress towards meeting the NAAQS. 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 web service is intended for informational use only and does not constitute a regulatory determination by EPA as whether an area has attained a NAAQS. The information set forth in this report has no regulatory effect. To have regulatory effect, a final EPA determination as to whether an area has attained a NAAQS or 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.

Copyright Text: US EPA, Office of Air and Radiation, Office of Air Quality Planning and Standards (OAQPS)

Spatial Reference: 104145 (104145)

Initial Extent:
Full Extent:
Units: esriDecimalDegrees

Child Resources:   Info

Supported Operations:   Query