Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
INTERGRAPH CORP
1 MADISON INDL PARK, HUNTSVILLE, AL, 358940001
Parent company: NA
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases 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.
| Year | Freon 113 (CFC-113) | 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) | Ammonia | Chlorine | Total |
|---|---|---|---|---|---|---|
| 1995 | — | 500 | — | 500 | — | 1,000 |
| 1994 | — | 500 | 500 | — | — | 1,000 |
| 1993 | — | 500 | 500 | — | — | 1,000 |
| 1992 | — | 500 | 500 | — | — | 1,010 |
| 1991 | 6,969 | 500 | 500 | — | — | 7,995 |
| 1990 | 27,641 | 750 | — | 500 | 250 | 29,141 |
| 1988 | — | 250 | — | — | — | 250 |