Particulate Matter (PM-10): Federal Area Designations: California, 2011
Abstract/Contents
- Abstract
- This polygon shapefile shows designated areas for particulate matter < 10 microns according to the 24-Hour National Ambient Air Quality Standards (NAAQS). This category of particle pollution measurement monitors inhalable coarse particles, such as those found near roadways and dusty industries, that are larger than 2.5 micrometers and smaller than 10 micrometers in diameter. A geographic area that meets or does better than the primary standard is called an attainment area; areas that don't meet the primary standard are called nonattainment areas. These standards are part of the Clean Air Act. See Code of Federal Regulations, Section 40 Part 81 (40CFR81.305) for detailed information about Ambient Air Quality Standards. Each designation and classification area has an associated date field that represents the "effective" date of the action as published in 40CFR81.305. Projection: Teale Albers, NAD83.
- Purpose
- This data set is intended to help provide the public with information to determine whether or not air quality within a given area is healthy. Once designations take effect, they also become an important component of state, tribal and local governments' efforts to control coarse particulate matter pollution.
Description
Type of resource | cartographic, software, multimedia |
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Form | Shapefile |
Extent | 4.915 |
Place | Sacramento, California, US |
Publisher | California. Air Resources Board |
Date valid | 2011 |
Publication date | 2011 |
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 |
Creators/Contributors
Creator | United States. Environmental Protection Agency. Region IX |
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Subjects
Subject | Air quality management |
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Subject | Particulate nitrate |
Subject | Sulfates |
Subject | Organic compounds |
Subject | United States. Clean Air Act |
Subject | California |
Subject | 2011 |
Subject | Climatology, Meteorology and Atmosphere |
Subject | Environment |
Subject | Health |
Genre | Geospatial data |
Genre | Cartographic dataset |
Bibliographic information
Supplemental information | Based on 40CFR81.305 (February 22, 2011) . |
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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 | |
Location | https://purl.stanford.edu/xj296sf2900 |
Access conditions
- 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
- Preferred citation
- Environmental Protection Agency. (2011). Particulate Matter (PM-10): Federal Area Designations: California, 2011. California Air Resources Board. Available at: http://purl.stanford.edu/tb975sj1011.
Collection
California Air Resources Board GIS Maps & Data
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