Facility detail

UMICORE OPTICAL MATERIALS USA INC.

2976 S 614 RD, QUAPAW, OK, 74363

Parent company: UMICORE USA INC

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	Chlorine	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	Methanol	Sodium hydroxide (solution)	Total
2023	—	2	—	—	—	2
2015	—	3	—	—	—	3
2014	—	4	—	—	—	4
2013	—	4	—	—	—	4
2012	—	5	—	—	—	5
2011	4	6	—	—	—	10
2010	13	5	—	—	—	18
2009	27	2	—	—	—	29
2008	29	3	—	—	—	32
2007	20	3	—	—	—	23
2006	5,450	690	—	—	—	6,140
2005	5,450	690	—	—	—	6,140
2004	9,818	2,265	—	—	—	12,083
2003	20,505	2,300	—	—	—	22,805
2002	33,805	6,900	—	—	—	40,705
2001	23,000	9,800	—	1,200	—	34,000
2000	22,100	13,200	—	1,900	—	37,200
1999	9,300	13,300	—	1,600	—	24,200
1998	9,900	13,600	—	5,800	—	29,300
1997	11,800	10,500	—	—	—	22,300
1996	15,300	10,600	—	—	—	25,900
1995	18,600	8,800	—	—	—	27,400
1994	15,700	8,000	12,000	—	—	35,700
1993	12,300	7,800	8,800	—	—	28,900
1992	18,900	8,000	12,100	—	—	39,000
1991	18,900	8,000	12,100	—	—	39,000
1990	19,200	8,000	12,000	—	—	39,200
1989	19,200	5,400	11,800	—	—	36,400
1988	19,200	—	—	—	500	19,700
1987	75,450	—	—	—	—	75,450