Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
AIRGAS NATIONAL WELDERS
5313 OLD DOWD RD, CHARLOTTE, NC, 28208
Parent company: AIRGAS USA LLC
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 | Acetone | Total (lbs) | |||
| 2024 | 750 | — | 750 | |||
| 2023 | 750 | — | 750 | |||
| 2021 | 634 | — | 634 | |||
| 2020 | 633 | — | 633 | |||
| 2019 | 843 | — | 843 | |||
| 2018 | 886 | — | 886 | |||
| 2017 | 865 | — | 865 | |||
| 2016 | 715 | — | 715 | |||
| 2015 | 659 | — | 659 | |||
| 2014 | 657 | — | 657 | |||
| 2013 | 671 | — | 671 | |||
| 2012 | 838 | — | 838 | |||
| 2011 | 795 | — | 795 | |||
| 2010 | 661 | — | 661 | |||
| 2009 | 646 | — | 646 | |||
| 2008 | 710 | — | 710 | |||
| 2007 | 192 | — | 192 | |||
| 2006 | 128 | — | 128 | |||
| 2005 | 112 | — | 112 | |||
| 2004 | 108 | — | 108 | |||
| 2003 | 126 | — | 126 | |||
| 2002 | 250 | — | 250 | |||
| 2001 | 250 | — | 250 | |||
| 2000 | 250 | — | 250 | |||
| 1999 | 250 | — | 250 | |||
| 1997 | 750 | — | 750 | |||
| 1992 | — | 5 | 5 | |||
| 1991 | — | 5 | 5 | |||
| 1990 | — | 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.