Facility detail

KENNAMETAL INC DBA KENNAMETAL FIRTH STERLING

7300 HWY 20 W, HUNTSVILLE, AL, 35806

Parent company: KENNAMETAL INC

Carcinogen — EPA classifications across all reporting years

Year-over-year total releases

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	Ammonia	Hydrogen sulfide	Cobalt	Cobalt compounds	Molybdenum trioxide	Total
2024	1,295,510	1,454	—	—	—	1,298,054
2023	1,130,190	2,666	—	230	—	1,133,213
2022	1,252,510	1,475	—	—	—	1,254,356
2021	1,470,490	—	—	—	—	1,470,659
2020	1,290,210	—	—	—	—	1,290,474
2019	1,340,060	—	—	—	—	1,340,385
2018	990,390	2,020	—	—	—	993,425
2017	697,870	1,758	—	1,808	—	701,437
2016	665,390	1,778	—	1,147	—	668,458
2015	382,330	—	—	1,999	—	384,557
2014	500,370	2,020	—	1,307	—	503,828
2013	446,440	—	—	2,301	—	448,971
2012	402,550	1,162	3,802	—	—	407,894
2011	315,418	—	7,202	—	—	323,335
2010	328,354	—	81	—	—	328,443
2009	241,481	—	1,156	—	—	242,642
2008	586,518	—	—	—	—	586,523
2007	539,644	—	—	—	—	539,649
2006	188,385	—	—	—	—	188,390
2005	134,593	—	—	—	—	134,598
2004	158,282	—	—	—	—	158,287
2003	86,505	—	—	—	—	86,510
2002	18,771	—	—	—	—	18,776
2001	4,990	—	—	—	—	4,995
2000	7,742	—	—	—	—	7,992
1999	53,284	—	—	—	1,570	55,104
1998	40,750	—	—	—	1,000	41,755
1997	34,000	—	—	—	—	34,005
1996	34,000	—	—	—	—	34,005
1995	47,000	—	—	—	—	47,000
1994	53,000	—	—	—	—	53,000
1993	28,000	—	—	—	—	28,000
1992	40,000	—	250	—	537	41,037
1991	36,000	—	—	—	250	36,500
1990	162,000	—	250	—	250	162,750
1989	23,126	—	—	—	250	23,376
1988	372,849	—	—	—	250	373,099