Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
1006 E OAKLAND AVE, PONCA CITY, OK, 74601
Parent company: CONTINENTAL CARBON CO
Reported on-site TRI releases in pounds, grouped by reporting year.
The 10 chemicals with the highest cumulative on-site releases across all available years.
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| Year | Carbon disulfide | Carbonyl sulfide | Hydrogen cyanide | Hydrogen sulfide | Polycyclic aromatic compounds | Total |
|---|---|---|---|---|---|---|
| 2024 | 2,075 | — | 265 | 4,258 | 8 | 6,606 |
| 2023 | 4,792 | — | 567 | 9,641 | — | 15,000 |
| 2022 | 3,628 | — | — | 7,270 | — | 10,899 |
| 2021 | 26 | — | 2 | 55 | 5 | 88 |
| 2020 | 460 | 23 | 39 | 973 | 2 | 1,497 |
| 2019 | 786 | 82 | 82 | 2,186 | 30 | 3,167 |
| 2018 | 640 | 24 | 53 | 1,260 | 16 | 1,997 |
| 2017 | 2,179 | 97 | 199 | 4,417 | 27 | 6,921 |
| 2016 | 1,963 | 87 | 159 | 3,975 | 18 | 6,204 |
| 2015 | 3,285 | 141 | 281 | 6,631 | 15 | 10,355 |
| 2014 | 1,372 | 41 | 148 | 4,320 | 24 | 5,906 |
| 2013 | 570 | 26 | 102 | 1,121 | 12 | 1,832 |
| 2012 | 1,282 | 41 | 3,217 | 2,386 | 12 | 6,940 |
| 2011 | 1,111 | 58 | 159 | — | 7 | 1,335 |
| 2010 | 932 | 42 | 136 | — | 7 | 1,117 |
| 2009 | 259 | 20 | 47 | — | 9 | 335 |
| 2008 | 1,473 | 43 | 6,134 | — | 13 | 7,664 |
| 2007 | 36 | 6 | 6,011 | — | 16 | 6,070 |
| 2005 | 1,565 | 45 | 5,845 | — | 16 | 7,472 |
| 2004 | 505 | 25 | 5,944 | — | 0 | 6,474 |
| 2003 | 11,977 | 1,155 | 3,409 | — | 127 | 16,686 |
| 2002 | 11,892 | 3,706 | 6,834 | — | 1 | 22,433 |
| 2001 | 11,650 | 3,702 | 6,680 | — | 1 | 22,033 |
| 2000 | 11,506 | 3,596 | 6,696 | — | 26 | 21,824 |
| 1999 | 15,560 | 4,906 | 8,980 | — | — | 29,446 |
| 1998 | 30,482 | 3,548 | 12,576 | — | — | 46,606 |
| 1997 | 334,332 | 35,042 | 82,690 | — | — | 452,064 |
| 1996 | 443,212 | 52,356 | 111,286 | — | — | 606,854 |
| 1995 | 394,684 | 46,373 | 137,722 | — | — | 578,779 |
| 1994 | 431,820 | 50,220 | 143,080 | — | — | 625,120 |
| 1993 | 413,200 | 46,400 | — | — | — | 459,600 |
| 1992 | 592,954 | 121,208 | — | — | — | 714,162 |
| 1991 | 358,600 | 41,600 | — | — | — | 400,200 |
| 1990 | 588,965 | 120,027 | — | — | — | 708,992 |
| 1989 | 515,623 | 105,490 | — | — | — | 621,113 |
| 1988 | — | 51,800 | — | — | — | 51,800 |