Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
AFTON CHEMICAL ADDITIVES CORP
4245 SAVANNAH AVE, PORT ARTHUR, TX, 77640
Parent company: NEWMARKET CORP
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 | Formaldehyde | Methyl methacrylate | Maleic anhydride | Methanol | Xylene (mixed isomers) | Total (lbs) |
| 2024 | — | 544 | — | — | — | 544 |
| 2023 | — | 367 | — | — | — | 367 |
| 2022 | — | 820 | — | — | — | 820 |
| 2021 | — | 1,028 | — | — | — | 1,028 |
| 2020 | — | 591 | — | — | — | 591 |
| 2019 | — | 538 | — | — | — | 538 |
| 2018 | — | 726 | — | — | — | 726 |
| 2017 | — | 702 | — | — | — | 702 |
| 2016 | — | 668 | — | — | — | 668 |
| 2015 | — | 729 | — | — | — | 729 |
| 2014 | — | 738 | — | — | — | 738 |
| 2013 | — | 788 | — | — | — | 788 |
| 2012 | — | 926 | — | — | — | 926 |
| 2011 | — | 851 | — | — | — | 851 |
| 2010 | — | 862 | — | — | — | 862 |
| 2009 | — | 438 | — | — | — | 438 |
| 2008 | — | 543 | — | — | — | 543 |
| 2007 | — | 416 | — | — | — | 416 |
| 2006 | — | 390 | — | — | — | 390 |
| 2005 | — | 380 | — | — | — | 380 |
| 2004 | — | 433 | — | — | — | 433 |
| 2003 | — | 1,191 | — | — | — | 1,191 |
| 2002 | — | 1,306 | — | — | — | 1,306 |
| 2001 | — | 1,067 | — | — | — | 1,067 |
| 2000 | — | 1,153 | — | — | — | 1,153 |
| 1999 | — | 316 | — | — | — | 316 |
| 1998 | — | 1,250 | — | — | — | 1,611 |
| 1997 | 9,300 | 1,245 | 9,630 | 7,000 | 1,288 | 29,662 |
| 1996 | 13,000 | 73 | 9,820 | 8,400 | 3,850 | 36,832 |
▎ 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.