2015 Washington Toxics Release Inventory (TRI)
The Toxics Release Inventory (TRI) identifies facilities that release certain chemicals into air, water, or land. These facilities are required to report the amounts of chemicals they release on site or send for disposal off site each year. 2015 is the most recent reporting year for which we have data.
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What is a Release?
Releases in TRI are classified as either "on-site" or "off-site." An on-site release is the amount of a toxic chemical a facility emits or disposes to air, water, or land. An off-site release is the amount transferred off site for disposal; it also includes metals released into wastewater that goes to a Publicly Owned Treatment Works (POTW).
In 2015, 327 facilities submitted 1,087 chemical reports. From these data, we found:
Total releases were more than 26 million pounds. Most of these releases (40%) were to land.
Compared to 2014, total releases have increased by nearly five million pounds (22.2 percent). While releases to air have gone down, water releases are relatively unchanged, and land releases have increased by 74.5 percent.
TRI Releases in Washington, 2014 compared to 2015 (in pounds)
TRI releases have decreased in Washington since 2003. The number of facilities reporting to TRI decreased until 2012. Since 2012, an additional 17 businesses report to TRI.
TRI Releases by Industry Type, 2015 (in pounds)
**Publicly Owned Treatment Works, metals only
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