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

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Abstract/Contents

Abstract: 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, NAD83
Purpose: This 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.

Type of resource	cartographic, software, multimedia
Form	Shapefile
Extent	4.738
Place	Sacramento, California, US
Publisher	California. Air Resources Board
Date valid	2003
Publication date	2003
Language	English
Digital origin	born digital
Map data	Scale not given. ; Custom projection W 124°30ʹ22ʺ--W 113°29ʹ55ʺ/N 42°4ʹ8ʺ--N 32°25ʹ25ʺW 124°24ʹ35ʺ--W 114°7ʹ53ʺ/N 42°35ʺ--N 32°32ʹ3ʺ, Scale not given ; EPSG::4326

Creator	California Air Resources Board. Planning and Technical Support Division
Creator	Stephen P. Teale Data Center (Calif.).

Subject	Atmospheric ozone
Subject	Air quality management
Subject	United States. Clean Air Act
Subject	California
Subject	2003
Subject	Climatology, Meteorology and Atmosphere
Subject	Environment
Subject	Health
Genre	Geospatial data
Genre	Cartographic dataset

WGS84 Cartographics	This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
Location	https://purl.stanford.edu/tq104yf5887

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.

Preferred citation: Teale Data Center GIS Lab. California Air Resources Board. (2003). One-Hour Ozone Areas: Federal Designations, California, 2003. California Air Resources Board. Available at: http://purl.stanford.edu/tq104yf5887.

California Air Resources Board GIS Maps & Data

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