Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
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21797 SWEPCO PLANT RD, GENTRY, AR, 72734
Parent company: AMERICAN ELECTRIC POWER
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 | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | Hydrogen fluoride | Barium And Barium Compounds | Manganese compounds | Ammonia | Total |
|---|---|---|---|---|---|---|
| 2024 | 189,327 | 44,900 | — | 27,110 | — | 282,047 |
| 2023 | 150,330 | 40,500 | — | 22,708 | — | 229,065 |
| 2022 | — | 47,500 | 283,229 | — | 49,250 | 450,399 |
| 2021 | — | 52,600 | 260,076 | — | 56,250 | 462,143 |
| 2020 | — | 35,000 | 136,056 | 21,183 | 51,250 | 257,224 |
| 2019 | 88,073 | 43,600 | — | 16,138 | 54,250 | 214,483 |
| 2018 | — | 46,700 | 238,122 | — | 51,250 | 391,289 |
| 2017 | 175,878 | 50,200 | — | 26,627 | 54,250 | 354,905 |
| 2016 | 233,665 | 37,400 | — | 25,172 | 460,250 | 774,551 |
| 2015 | 158,307 | 54,800 | — | 17,437 | — | 265,494 |
| 2014 | 426,950 | 65,500 | — | 41,470 | — | 615,432 |
| 2013 | 458,410 | 57,400 | — | 44,574 | — | 648,929 |
| 2012 | 690,830 | 69,700 | — | 64,722 | — | 950,973 |
| 2011 | 537,810 | 68,000 | — | 52,620 | — | 759,345 |
| 2010 | 557,880 | 64,000 | — | 52,697 | — | 778,796 |
| 2009 | 453,710 | 51,000 | — | 42,170 | — | 632,016 |
| 2008 | 461,110 | 65,000 | — | 44,920 | — | 658,062 |
| 2007 | 391,910 | 65,000 | — | 40,000 | — | 574,052 |
| 2006 | 411,210 | 67,000 | — | 41,000 | — | 599,881 |
| 2005 | 391,810 | 64,000 | — | 37,939 | — | 568,420 |
| 2004 | 434,310 | 64,000 | — | 39,945 | — | 628,730 |
| 2003 | 444,510 | 58,000 | — | 39,695 | — | 630,586 |
| 2002 | 596,410 | 67,000 | — | 56,745 | — | 830,462 |
| 2001 | 596,510 | 67,000 | — | 57,675 | — | 845,286 |
| 2000 | 365,410 | 69,000 | — | 32,529 | — | 535,144 |
| 1999 | 945,800 | 89,000 | — | — | — | 1,105,800 |
| 1998 | 795,100 | 150,000 | — | 19,927 | — | 1,298,057 |