Facility detail

LITTELFUSE INC

800 E NW HWY, DES PLAINES, IL, 60016

Parent company: NA

Carcinogen PBT — EPA classifications across all reporting years

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Year-over-year total releases

Reported on-site TRI releases in pounds (lbs), grouped by reporting year.

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	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	Cyanide compounds	Nickel compounds	Isopropyl alcohol (only persons who manufacture by the strong acid process are subject, no supplier notification)	Total (lbs)
2007	—	—	20	—	—	60
2006	—	—	20	—	—	100
2005	—	—	20	—	—	100
2004	—	—	20	20	—	100
2003	—	—	20	20	—	100
2002	—	—	20	10	—	60
2001	—	—	20	20	—	80
2000	—	—	20	20	—	80
1999	—	—	20	—	—	100
1998	—	—	20	—	—	80
1997	—	—	20	30	—	90
1996	—	—	20	—	—	70
1995	—	—	10	500	—	520
1994	500	—	10	500	500	1,520
1993	500	500	500	10	—	1,550
1992	500	500	500	—	—	1,540
1991	500	500	500	10	—	1,550
1990	500	500	500	10	—	1,550
1989	500	500	—	—	—	1,000
1987	500	—	—	—	—	500

▎ 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.