2011 NATA - Risks and Annual Ambient Concentrations

Metadata Updated: March 31, 2016

This dataset includes the modeled annual ambient concentrations and risks at the census tract level for the 2011 National Air Toxics Assessment. All concentrations have units of micrograms per cubic meter (µg/m3 ), and all cancer risk estimates are on a per million basis. For example, a cancer risk of 10 means the estimated lifetime risk of cancer is 10 in a million (that is, the estimated probability of getting cancer is 0.00001).

Access & Use Information

Downloads & Resources

Dates

Metadata Date January 1, 9999
Metadata Created Date March 16, 2016
Metadata Updated Date March 31, 2016
Reference Date(s) December 14, 2015 (publication)
Frequency Of Update unknown

Metadata Source

Harvested from Environmental Dataset Gateway FGDC CSDGM

Additional Metadata

Resource Type Dataset
Metadata Date January 1, 9999
Metadata Created Date March 16, 2016
Metadata Updated Date March 31, 2016
Reference Date(s) December 14, 2015 (publication)
Responsible Party U.S. Environmental Protection Agency, Office of Air and Radiation-Office of Air Quality Planning and Standards (Point of Contact)
Contact Email
Access Constraints Use Constraints: None. Please check sources, scale, accuracy, currency and other available information. Please confirm that you are using the most recent copy of both data and metadata. Acknowledgement of the EPA would be appreciated., Access Constraints: None
Bbox East Long -64.631500
Bbox North Lat 71.056900
Bbox South Lat 17.796400
Bbox West Long -174.113620
Coupled Resource
Frequency Of Update unknown
Guid
Harvest Object Id 9292d44a-c736-4a47-b45c-02098a1ee9f0
Harvest Source Id d0d72986-7693-406b-b71d-840540909711
Harvest Source Title Environmental Dataset Gateway FGDC CSDGM
Licence Although these data have been processed successfully on a computer system at the Environmental Protection Agency, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data to evaluate data set limitations, restrictions or intended use. The U.S. Environmental Protection Agency shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2011-01-01
Temporal Extent End 2011-12-31

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