TRI National Analysis 2013: Where You Live Page: 2 of 6
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TRI National Analysis 2013: Where You Live
Updated April 2015
This chapter of the National Analysis looks at toxic chemical disposal or other releases at
various geographical levels throughout the United States. The map default display is of total
releases by state.
To view summary TRI data, select search parameters within the top two rows or query the
map directly. Note that searching for city or zip code level information is possible only by
specifying the search parameters.
The map displays data for states, counties, metropolitan areas, watersheds and tribal.
States include all U.S. territories for a total of 56 states/territories. All 56 states and
territories have facilities that report releases to the TRI program. The three states with the
greatest number of TRI facilities are Texas, Ohio and Pennsylvania, which together
accounted for 22% of total reporting facilities in 2013. Selecting a state on the map will
provide a pop-up with:
- a state-level summary of TRI data
- a link to the state-level TRI fact sheet
- an option to zoom to the counties within the state.
When zoomed to the state's map of counties, you may click to retrieve county-level
summaries of TRI data and link to a county-level TRI fact sheet.
More than 80% of the country's population and many of the industrial facilities that report to
the TRI Program are located in urban areas. This map option shows all metropolitan and
micropolitan statistical areas (metro and micro areas) in the United States as defined by the
Office of Management and Budget (OMB), that had releases in 2013. Metro and micro areas
consist of one or more socially and economically integrated adjacent counties, cities, or
towns. Click on any of these areas on the map for an analysis of TRI data specific to each.
A watershed is the land area that drains to a common waterway. Rivers, lakes, estuaries,
wetlands, streams, and oceans are catch basins for the land adjacent to them. Ground
water aquifers are replenished based on water flowing down through the land area above
them. These important water resources are sensitive to chemicals and other pollutants
released within or transferred across their boundaries.
Large aquatic ecosystems (LAEs) comprise multiple small watersheds and water resources
within a large geographic area. The Large Aquatic Ecosystems Council was created by the
U.S. Environmental Protection Agency in 2008 to focus on protecting and restoring the
health of critical aquatic ecosystems. Currently, there are 10 LAEs in this program. Click on
any of the 10 LAEs featured on the map to see an analysis of toxic chemical releases in
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Reference the current page of this Chapter.
United States. Environmental Protection Agency. TRI National Analysis 2013: Where You Live, chapter, April 2015; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc949265/m1/2/: accessed April 20, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.