Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
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4050 NE EVERGREEN RD, HILLSBORO, OR, 97124
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Reported on-site TRI releases in pounds, grouped by reporting year.
The 10 chemicals with the highest cumulative on-site releases across all available years.
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| Year | Nitric acid | Hydrogen fluoride | Ammonia | Total |
|---|---|---|---|---|
| 2018 | 5 | 6 | 0 | 12 |
| 2017 | 28 | 12 | 1 | 41 |
| 2016 | 28 | 12 | 1 | 41 |
| 2015 | 25 | 11 | 1 | 37 |
| 2014 | 22 | 10 | 1 | 33 |
| 2013 | 14 | 5 | 1 | 20 |
| 2012 | 5 | 5 | — | 10 |
| 2011 | 10 | 5 | — | 15 |
| 2010 | 5 | 5 | — | 10 |
| 2009 | 2 | 2 | — | 4 |
| 1998 | 373 | 26 | — | 399 |