Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
POET BIOREFINING - ASHTON
4970 260TH ST, ASHTON, IA, 51232
Parent company: POET HOLDING CO LLC
Carcinogen
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases across all available years.
Full release table
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| Year | Ammonia | Acetaldehyde | n-Hexane | Formic acid | Formaldehyde | Total |
|---|---|---|---|---|---|---|
| 2024 | — | — | 2,683 | 912 | — | 3,595 |
| 2023 | — | — | 2,848 | 1,400 | — | 4,248 |
| 2022 | — | — | 2,752 | 1,300 | — | 4,052 |
| 2021 | — | 1,161 | — | 2,100 | 1,128 | 7,189 |
| 2020 | — | — | 2,558 | 806 | 1,118 | 6,562 |
| 2019 | — | — | 3,563 | 1,900 | 1,622 | 9,805 |
| 2018 | — | 5,127 | 3,565 | 2,000 | 2,913 | 17,335 |
| 2017 | — | 5,426 | 3,964 | — | 2,612 | 13,242 |
| 2016 | — | 5,727 | 3,771 | — | 2,113 | 12,701 |
| 2015 | — | 4,285 | 3,762 | — | 902 | 8,949 |
| 2014 | — | 3,959 | 3,359 | — | 827 | 8,145 |
| 2013 | — | 3,982 | 2,862 | — | 773 | 7,617 |
| 2012 | — | 3,982 | 2,285 | — | 777 | 7,044 |
| 2011 | 5,996 | 3,760 | — | 3,293 | — | 13,049 |
| 2010 | 6,154 | 3,507 | — | 3,403 | — | 13,064 |
| 2009 | 5,833 | 4,158 | — | 3,403 | — | 13,394 |
| 2008 | 5,499 | 3,685 | 1,480 | 3,408 | — | 14,177 |
| 2007 | 52,725 | 3,061 | 3,521 | 1,476 | — | 60,783 |
| 2006 | 104,750 | 3,072 | 3,416 | 1,481 | — | 112,719 |
| 2005 | 100,457 | 4,380 | 4,183 | 1,533 | — | 110,553 |
| 2004 | 4,087 | 18,282 | — | — | — | 22,369 |