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2012 TRI Analysis: Large Aquatic Ecosystems - Columbia River Basin
Data Source: 2013 National Analysis dataset (released October 2014) (Updated Nov 24, 2014)

Map of TRI Facilities in Columbia River Basin

How does Columbia River Basin compare to other large aquatic ecosystems in the country?
Columbia River Basin ranks 6 out of 10 large aquatic ecosystems in the country based on total releases per square mile (Rank 1 = highest releases)

Top Five Chemicals by Environmental Medium
Columbia River Basin, 2012

Note: **=Carcinogenic Chemical

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