Dataset Identification:
Resource Abstract:
- description: This web service contains the following state level layers:Ozone 8-hr (1997 standard), Ozone 8-hr (2008 standard),
Lead (2008 standard), SO2 1-hr (2010 standard), PM2.5 24hr (2006 standard), PM2.5 Annual (1997 standard), PM2.5 Annual (2012
standard), and PM10 (1987 standard). Full FGDC metadata records for each layer may be found by clicking the layer name at
the web service endpoint (http://gispub.epa.gov/arcgis/rest/services/OAR_OAQPS/NonattainmentAreas/MapServer) and viewing the
layer description. These layers identify areas in the U.S. where air pollution levels have not met the National Ambient Air
Quality Standards (NAAQS) for criteria air pollutants and have been designated "nonattainment areas (NAA)". The
data are updated weekly from an OAQPS internal database. However, that does not necessarily mean the data have changed. The
EPA Office of Air Quality Planning and Standards (OAQPS) has set National Ambient Air Quality Standards for six principal
pollutants, which are called "criteria" pollutants. Under provisions of the Clean Air Act, which is intended to
improve the quality of the air we breathe, EPA is required to set National Ambient Air Quality Standards for six common air
pollutants. These commonly found air pollutants (also known as "criteria pollutants") are found all over the United
States. They are particle pollution (often referred to as particulate matter), ground-level ozone, carbon monoxide, sulfur
oxides, nitrogen oxides, and lead. For each criteria pollutant, there are specific procedures used for measuring ambient concentrations
and for calculating long-term (quarterly or annual) and/or short-term (24-hour) exposure levels. The methods and allowable
concentrations vary from one pollutant to another, and within NAAQS revisions for each pollutant. These pollutants can harm
your health and the environment, and cause property damage. Of the six pollutants, particle pollution and ground-level ozone
are the most widespread health threats. EPA calls these pollutants "criteria" air pollutants because it regulates
them by developing human health-based and/or environmentally-based criteria (science-based guidelines) for setting permissible
levels. The set of limits based on human health is called primary standards. Another set of limits intended to prevent environmental
and property damage is called secondary standards. 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. In some cases,
a designated nonattainment area can include portions of 2, 3, or 4 states rather than falling entirely within a single state.
Multi-state areas have had different state portions handled through up to 3 separate EPA regional offices. The actions of
EPA and the state governments for separate portions of such areas are not always simultaneous. While some areas have had coordinated
action from all related states on the same day, other areas (so-called "split areas") have had delays of several
months, ranging up to more than 2 years, between different states. EPA must designate areas as meeting (attainment) or not
meeting (nonattainment) the standard. A designation is the term EPA uses to describe the air quality in a given area for any
of the six common air pollutants (criteria pollutants). After EPA establishes or revises a primary and/or secondary National
Ambient Air Quality Standard (NAAQS), the Clean Air Act requires EPA to designate areas as "attainment" (meeting),
"nonattainment" (not meeting), or "unclassifiable" (insufficient data) after monitoring data is collected
by state, local and tribal governments. Once nonattainment designations take effect, the state and local governments have
three years to develop implementation plans outlining how areas will attain and maintain the standards by reducing air pollutant
emissions. For further information please refer to: http://www3.epa.gov/airquality/greenbook/index.html. Questions concerning
the status of nonattainment areas, their classification and EPA policy should be directed to the appropriate Regional Offices
(http://www3.epa.gov/airquality/greenbook/regcntct.html). EPA Headquarters should be contacted only when the Regional Office
is unable to answer a question.; abstract: This web service contains the following state level layers:Ozone 8-hr (1997 standard),
Ozone 8-hr (2008 standard), Lead (2008 standard), SO2 1-hr (2010 standard), PM2.5 24hr (2006 standard), PM2.5 Annual (1997
standard), PM2.5 Annual (2012 standard), and PM10 (1987 standard). Full FGDC metadata records for each layer may be found
by clicking the layer name at the web service endpoint (http://gispub.epa.gov/arcgis/rest/services/OAR_OAQPS/NonattainmentAreas/MapServer)
and viewing the layer description. These layers identify areas in the U.S. where air pollution levels have not met the National
Ambient Air Quality Standards (NAAQS) for criteria air pollutants and have been designated "nonattainment areas (NAA)".
The data are updated weekly from an OAQPS internal database. However, that does not necessarily mean the data have changed.
The EPA Office of Air Quality Planning and Standards (OAQPS) has set National Ambient Air Quality Standards for six principal
pollutants, which are called "criteria" pollutants. Under provisions of the Clean Air Act, which is intended to
improve the quality of the air we breathe, EPA is required to set National Ambient Air Quality Standards for six common air
pollutants. These commonly found air pollutants (also known as "criteria pollutants") are found all over the United
States. They are particle pollution (often referred to as particulate matter), ground-level ozone, carbon monoxide, sulfur
oxides, nitrogen oxides, and lead. For each criteria pollutant, there are specific procedures used for measuring ambient concentrations
and for calculating long-term (quarterly or annual) and/or short-term (24-hour) exposure levels. The methods and allowable
concentrations vary from one pollutant to another, and within NAAQS revisions for each pollutant. These pollutants can harm
your health and the environment, and cause property damage. Of the six pollutants, particle pollution and ground-level ozone
are the most widespread health threats. EPA calls these pollutants "criteria" air pollutants because it regulates
them by developing human health-based and/or environmentally-based criteria (science-based guidelines) for setting permissible
levels. The set of limits based on human health is called primary standards. Another set of limits intended to prevent environmental
and property damage is called secondary standards. 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. In some cases,
a designated nonattainment area can include portions of 2, 3, or 4 states rather than falling entirely within a single state.
Multi-state areas have had different state portions handled through up to 3 separate EPA regional offices. The actions of
EPA and the state governments for separate portions of such areas are not always simultaneous. While some areas have had coordinated
action from all related states on the same day, other areas (so-called "split areas") have had delays of several
months, ranging up to more than 2 years, between different states. EPA must designate areas as meeting (attainment) or not
meeting (nonattainment) the standard. A designation is the term EPA uses to describe the air quality in a given area for any
of the six common air pollutants (criteria pollutants). After EPA establishes or revises a primary and/or secondary National
Ambient Air Quality Standard (NAAQS), the Clean Air Act requires EPA to designate areas as "attainment" (meeting),
"nonattainment" (not meeting), or "unclassifiable" (insufficient data) after monitoring data is collected
by state, local and tribal governments. Once nonattainment designations take effect, the state and local governments have
three years to develop implementation plans outlining how areas will attain and maintain the standards by reducing air pollutant
emissions. For further information please refer to: http://www3.epa.gov/airquality/greenbook/index.html. Questions concerning
the status of nonattainment areas, their classification and EPA policy should be directed to the appropriate Regional Offices
(http://www3.epa.gov/airquality/greenbook/regcntct.html). EPA Headquarters should be contacted only when the Regional Office
is unable to answer a question.
Citation
- Title US EPA Nonattainment Areas and Designations.
-
- creation Date
2016-03-31T23:58:44.597902
Resource language:
Processing environment:
Back to top:
Metadata data stamp:
2018-08-06T19:35:28Z
Resource Maintenance Information
- maintenance or update frequency:
- notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based
on a transform by Damian Ulbricht. Run on 2018-08-06T19:35:28Z
Metadata contact
-
pointOfContact
- organisation Name
CINERGI Metadata catalog
-
- Contact information
-
-
- Address
-
- electronic Mail Address cinergi@sdsc.edu
Metadata language
eng
Metadata character set encoding:
utf8
Metadata standard for this record:
ISO 19139 Geographic Information - Metadata - Implementation Specification
standard version:
2007
Metadata record identifier:
urn:dciso:metadataabout:149b341c-db5b-4d16-835d-190b31ca503a
Metadata record format is ISO19139 XML (MD_Metadata)