Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
EQUISTAR CHEMICALS LP CHOCOLATE BAYOU POLYMERS PLANT
2 MILES W OF FM 2917 ON FM 2004, ALVIN, TX, 77511
Parent company: LYONDELLBASELL INDUSTRIES
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 | Ethylene | Cyclohexane | Chlorine | n-Hexane | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total (lbs) |
| 2024 | 12,220 | — | — | — | — | 12,220 |
| 2023 | 11,289 | — | — | — | — | 11,289 |
| 2022 | 24,265 | — | — | — | — | 24,265 |
| 2021 | 21,363 | — | — | — | — | 21,363 |
| 2020 | 22,316 | — | — | — | — | 22,316 |
| 2019 | 19,030 | — | — | — | — | 19,030 |
| 2018 | 12,269 | — | — | — | — | 12,269 |
| 2017 | 15,267 | — | — | — | — | 15,267 |
| 2016 | 18,655 | — | — | — | — | 18,655 |
| 2015 | 13,128 | — | — | — | — | 13,128 |
| 2014 | 10,918 | — | — | — | — | 10,918 |
| 2013 | 12,394 | — | — | — | — | 12,394 |
| 2012 | 6,493 | — | — | — | — | 6,493 |
| 2011 | 7,774 | — | — | — | — | 7,774 |
| 2010 | 10,765 | — | — | — | — | 10,765 |
| 2009 | 14,390 | — | — | — | — | 14,390 |
| 2008 | 18,654 | — | — | — | — | 18,654 |
| 2007 | 27,314 | — | — | — | — | 27,314 |
| 2006 | 43,060 | — | — | — | — | 43,060 |
| 2005 | 59,814 | 517 | 1,675 | — | — | 62,006 |
| 2004 | 19,550 | 1,022 | 1,743 | — | — | 22,315 |
| 2003 | 117,460 | 5,785 | 1,065 | — | — | 124,310 |
| 2002 | 89,800 | 6,115 | 1,212 | — | — | 97,127 |
| 2001 | 48,165 | 8,022 | 1,340 | — | — | 57,527 |
| 2000 | 45,080 | 4,380 | 1,340 | — | — | 50,800 |
| 1999 | 43,434 | 4,371 | — | — | — | 47,805 |
| 1998 | 42,600 | — | — | — | — | 42,600 |
| 1997 | 35,134 | 5,229 | — | 3,120 | — | 43,483 |
| 1996 | 43,354 | 6,944 | — | 3,324 | — | 53,622 |
| 1995 | 45,922 | 7,282 | — | — | — | 53,204 |
| 1994 | 107,446 | 14,545 | — | — | — | 121,991 |
| 1993 | 197,128 | 20,006 | — | — | — | 217,134 |
| 1992 | 186,376 | 20,042 | — | — | — | 206,418 |
| 1991 | 136,720 | 23,510 | — | — | — | 160,230 |
| 1990 | 112,100 | — | 500 | — | 10 | 112,610 |
| 1989 | 112,100 | — | 500 | — | — | 112,600 |
| 1988 | 112,050 | — | — | — | — | 112,050 |
▎ 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.