Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
COVESTRO LLC
8500 W BAY RD MS-21, BAYTOWN, TX, 77523
Parent company: COVESTRO LLC
Carcinogen
PBT
— 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 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Sodium sulfate (solution) | Toluene | Ammonia | Chlorobenzene | Total (lbs) |
| 2024 | 308,727 | — | 1,846 | 12,416 | 5,821 | 354,960 |
| 2023 | 244,110 | — | 1,840 | 4,657 | 4,366 | 280,681 |
| 2022 | 170,558 | — | 2,042 | 12,821 | 4,503 | 217,851 |
| 2021 | 129,162 | — | 2,084 | 14,159 | 4,517 | 177,851 |
| 2020 | 196,996 | — | 1,252 | 10,740 | 4,451 | 238,100 |
| 2019 | 424,285 | — | 1,648 | 26,471 | 4,482 | 483,785 |
| 2018 | 58,517 | — | 1,343 | 21,263 | 5,959 | 115,113 |
| 2017 | 243,088 | — | 1,317 | 26,085 | 3,849 | 298,008 |
| 2016 | 64,493 | — | 1,037 | 32,780 | 3,432 | 119,830 |
| 2015 | 351,497 | — | 1,046 | 19,413 | 416 | 392,286 |
| 2014 | 387,274 | — | 1,260 | 23,704 | 6,263 | 435,760 |
| 2013 | 565,682 | — | 669 | 9,680 | 4,549 | 601,420 |
| 2012 | 36,690 | — | 709 | 742 | 13,607 | 76,333 |
| 2011 | 89,807 | — | 277 | 1,641 | 20,400 | 131,394 |
| 2010 | 404,955 | — | 267 | 2,759 | 18,649 | 453,967 |
| 2009 | 433,938 | — | 412 | 1,864 | 19,678 | 500,332 |
| 2008 | 235,094 | — | 437 | 35,890 | 6,240 | 305,196 |
| 2007 | 299,193 | — | 1,835 | 33,621 | 4,900 | 376,684 |
| 2006 | 64,605 | — | 538 | 38,954 | 3,801 | 121,628 |
| 2005 | 32,130 | — | 3,076 | 36,386 | 5,933 | 91,612 |
| 2004 | 103,660 | — | 3,076 | 39,002 | 5,350 | 173,442 |
| 2003 | 40,150 | — | 2,555 | 39,612 | 3,495 | 114,490 |
| 2002 | 44,753 | — | 1,375 | 39,059 | 7,176 | 123,571 |
| 2001 | 74,000 | — | 1,600 | 36,585 | 8,820 | 168,311 |
| 2000 | 132,000 | — | 130 | 37,540 | 3,600 | 207,885 |
| 1999 | 675,000 | — | 363 | 15,800 | 12,805 | 760,844 |
| 1998 | 3,618,000 | — | 3,110 | 30,385 | 9,005 | 3,744,425 |
| 1997 | 3,130,000 | — | 4,410 | 43,320 | 9,405 | 3,250,461 |
| 1996 | 2,200,000 | — | 4,750 | 27,350 | 22,955 | 2,371,440 |
| 1995 | 3,000,000 | — | 4,605 | 13,750 | 16,450 | 3,117,215 |
| 1994 | — | — | 146,405 | 15,210 | 21,850 | 289,705 |
| 1993 | — | — | 244,250 | 87,650 | 33,300 | 483,580 |
| 1992 | — | — | 291,750 | 88,250 | 22,200 | 515,475 |
| 1991 | — | — | 433,250 | 93,250 | 59,700 | 754,880 |
| 1990 | — | — | 525,114 | 88,549 | 56,643 | 844,538 |
| 1989 | — | — | 449,374 | 7,663 | 129,135 | 823,033 |
| 1988 | — | — | 470,000 | 20,400 | 161,566 | 911,104 |
| 1987 | — | 5,700,000 | — | — | — | 5,880,334 |
▎ 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.