Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
AIRGAS USA LLC
410 SE CREEKVIEW RD, ANKENY, IA, 50021
Parent company: AIRGAS INC
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 | Propylene | Total (lbs) | ||||
| 2024 | 2,495 | 2,495 | ||||
| 2023 | 908 | 908 | ||||
| 2022 | 595 | 595 | ||||
| 2021 | 531 | 531 | ||||
| 2020 | 655 | 655 | ||||
| 2019 | 377 | 377 | ||||
| 2018 | 1,696 | 1,696 | ||||
| 2017 | 1,976 | 1,976 | ||||
| 2016 | 1,976 | 1,976 | ||||
| 2015 | 2,259 | 2,259 | ||||
| 2014 | 2,157 | 2,157 | ||||
| 2013 | 2,456 | 2,456 | ||||
| 2012 | 3,515 | 3,515 | ||||
| 2011 | 1,455 | 1,455 | ||||
| 2010 | 1,150 | 1,150 | ||||
| 2009 | 1,066 | 1,066 | ||||
| 2008 | 719 | 719 | ||||
| 2007 | 5 | 5 | ||||
▎ 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.