Dataset Identification:
Resource Abstract:
- description: <p>The Environmental Protection Agency (EPA) provides air pollution data about ozone and particulate matter
(PM2.5) to CDC for the Tracking Network. The EPA maintains a database called the Air Quality System (AQS) which contains data
from approximately 4,000 monitoring stations around the country, mainly in urban areas. Data from the AQS is considered the
"gold standard" for determining outdoor air pollution. However, AQS data are limited because the monitoring stations
are usually in urban areas or cities and because they only take air samples for some air pollutants every three days or during
times of the year when air pollution is very high. CDC and EPA have worked together to develop a statistical model (Downscaler)
to make modeled predictions available for environmental public health tracking purposes in areas of the country that do not
have monitors and to fill in the time gaps when monitors may not be recording data. This data does not include "Percent
of population in counties exceeding NAAQS (vs. population in counties that either meet the standard or do not monitor PM2.5)".
Please visit the Tracking homepage for this information.View additional information for indicator definitions and documentation
by selecting Content Area "Air Quality" and the respective indicator at the following website: <a href="http://ephtracking.cdc.gov/showIndicatorsData.action">http://ephtracking.cdc.gov/showIndicatorsData.action</a></p>;
abstract: <p>The Environmental Protection Agency (EPA) provides air pollution data about ozone and particulate matter
(PM2.5) to CDC for the Tracking Network. The EPA maintains a database called the Air Quality System (AQS) which contains data
from approximately 4,000 monitoring stations around the country, mainly in urban areas. Data from the AQS is considered the
"gold standard" for determining outdoor air pollution. However, AQS data are limited because the monitoring stations
are usually in urban areas or cities and because they only take air samples for some air pollutants every three days or during
times of the year when air pollution is very high. CDC and EPA have worked together to develop a statistical model (Downscaler)
to make modeled predictions available for environmental public health tracking purposes in areas of the country that do not
have monitors and to fill in the time gaps when monitors may not be recording data. This data does not include "Percent
of population in counties exceeding NAAQS (vs. population in counties that either meet the standard or do not monitor PM2.5)".
Please visit the Tracking homepage for this information.View additional information for indicator definitions and documentation
by selecting Content Area "Air Quality" and the respective indicator at the following website: <a href="http://ephtracking.cdc.gov/showIndicatorsData.action">http://ephtracking.cdc.gov/showIndicatorsData.action</a></p>
Citation
- Title Air Quality Measures on the National Environmental Health Tracking Network.
-
- creation Date
2018-06-09T14:14:59.215995
Resource language:
Processing environment:
Back to top:
Metadata data stamp:
2018-08-06T19:35:07Z
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 2018-08-06T19:35:07Z
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:d8fdccf0-014f-4e1e-b86e-a84d37b44163
Metadata record format is ISO19139 XML (MD_Metadata)