EarthWorks Geospatial Catalog

One-Hour Ozone Areas: Federal Designations, California, 2003

Author(s)
and
Description
This polygon shapefile contains federal one-hour ozone area designations and their classifications as per 40CFR81.305, part of the National Ambient Air Quality Standard (NAAQS) which monitors pollutants in accordance with the Clean Air Act. There are three designation categories: nonattainment, unclassifiable and attainment areas. Non-attainment areas are those which are in violation of the standard. Nonattainment areas have various classifications. Each designation and classification area has an associated date field that represents the "effective" date of the action as published in 40CFR81.305. This data layer is current as of November 2003. Projection: Teale Albers, NAD83This shapefile can be used to identify designation areas for ozone pollution attainment defined pursuant to the corresponding federal National Ambient Air Quality Standard for each pollutant as per the Clean Air Act.
Publisher
California. Air Resources Board
Place(s)
California
Subject(s)
Atmospheric ozone, Air quality management, United States. Clean Air Act, Climatology, Meteorology and Atmosphere, Environment, and Health
Year
2003
Held by
Stanford
More details at
Use and reproduction
This item is in the public domain. There are no restrictions on use.
Copyright
This work is in the Public Domain, meaning that it is not subject to copyright.
Attribute Value
Click on map to inspect values