Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
AAON INC
2425 S YUKON, TULSA, OK, 74107
Parent company: NA
Carcinogen
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) 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.
| All values in pounds (lbs) | ||||||
|---|---|---|---|---|---|---|
| Year | Xylene (mixed isomers) | n-Butyl alcohol | Methyl ethyl ketone | Toluene | Methyl isobutyl ketone | Total (lbs) |
| 2024 | 11,820 | — | — | — | — | 11,825 |
| 2023 | 12,335 | — | — | — | — | 12,340 |
| 2022 | 11,288 | — | — | — | — | 11,293 |
| 2021 | 9,725 | — | — | — | — | 9,730 |
| 2020 | 10,403 | — | — | — | — | 10,408 |
| 2019 | 10,436 | 22,889 | — | — | — | 33,330 |
| 2018 | 11,227 | 34,235 | — | — | — | 45,466 |
| 2017 | 10,999 | 33,339 | — | — | — | 44,343 |
| 2016 | 10,385 | 22,136 | — | — | — | 32,526 |
| 2015 | 10,480 | — | — | — | — | 10,485 |
| 2014 | — | — | — | — | — | 5 |
| 2008 | 7,928 | — | — | — | — | 7,928 |
| 2007 | 8,846 | — | — | — | — | 8,846 |
| 2006 | 4,287 | — | — | — | — | 4,287 |
| 2003 | 5,091 | — | — | — | — | 5,091 |
| 2002 | 5,661 | — | — | — | — | 5,661 |
| 2000 | 28,700 | — | 3,960 | — | — | 32,665 |
| 1997 | 30 | — | 200 | — | — | 230 |
| 1996 | 15 | — | 250 | — | — | 265 |
| 1995 | 1,302 | — | 1,233 | — | — | 2,535 |
| 1994 | 1,941 | — | 1,994 | — | — | 3,935 |
| 1993 | 1,679 | — | 1,329 | — | — | 3,008 |
| 1992 | 1,493 | — | 750 | 1,755 | 750 | 4,748 |
▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.