Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
ROY S. NELSON PLANT
3500 HOUSTON RIVER RD, WESTLAKE, LA, 70669
Parent company: NA
Carcinogen
PBT
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases 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.
| Year | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Vanadium compounds | Hydrogen fluoride | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total |
|---|---|---|---|---|---|---|
| 2024 | — | — | 13,322 | 55,000 | 19,000 | 425,843 |
| 2023 | — | 10,000 | 13,107 | 17,000 | — | 180,465 |
| 2022 | — | 31,000 | 200,311 | 28,000 | 24,000 | 531,915 |
| 2021 | 171,130 | 32,000 | 230,288 | 22,000 | 92,000 | 614,381 |
| 2020 | 193,450 | 25,000 | 200,152 | 15,000 | 89,000 | 583,745 |
| 2019 | 373,890 | 39,000 | 260,282 | 27,000 | 38,000 | 835,770 |
| 2018 | 556,040 | 45,000 | 430,463 | 42,000 | 50,000 | 1,300,505 |
| 2017 | 5,960 | 43,000 | 333,430 | 39,000 | 57,000 | 508,859 |
| 2016 | 7,640 | 28,000 | 98,022 | 33,000 | 71,000 | 266,916 |
| 2015 | 30,960 | 140,000 | 2,627 | 31,000 | 33,000 | 242,262 |
| 2014 | 226,000 | 220,000 | 9,943 | 63,000 | 22,000 | 568,638 |
| 2013 | 498,000 | 240,000 | 36,048 | 180,000 | 12,000 | 1,031,337 |
| 2012 | 497,900 | 240,000 | 35,048 | 150,000 | 8,300 | 996,770 |
| 2011 | 508,700 | 280,000 | 20,312 | 79,000 | 10,000 | 955,909 |
| 2010 | 667,600 | 62,000 | 27,301 | 120,000 | 11,000 | 980,019 |
| 2009 | 6,605 | 64,000 | 342 | 170,000 | 8,900 | 252,428 |
| 2008 | 6,390 | 78,627 | 334 | 160,070 | 5,124 | 253,778 |
| 2007 | 12,537 | 58,278 | 368 | 120,805 | 7,874 | 204,175 |
| 2006 | 7,374 | 39,408 | 175 | 110,325 | 70,894 | 234,505 |
| 2005 | 10,414 | 57,118 | 407 | 73,464 | 61,038 | 207,106 |
| 2004 | 14,686 | 35,488 | 400 | 51,863 | 68,844 | 178,513 |
| 2003 | 13,672 | 33,881 | 403 | 53,476 | 71,602 | 179,586 |
| 2002 | 19,736 | 32,707 | 500 | 46,470 | 155,046 | 265,349 |
| 2001 | 25,000 | 26,004 | — | 53,000 | 140,000 | 262,212 |
| 2000 | 24,189 | 25,734 | — | 52,067 | 133,176 | 252,503 |
| 1999 | 22,689 | 25,827 | — | 48,814 | 123,428 | 238,290 |
| 1998 | 22,045 | 25,975 | — | 42,894 | 59,730 | 167,985 |