Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
BULL HN INFORMATION SYSTEMS INC
38 LIFE ST, BRIGHTON, MA, 02135
Parent company: NA
Carcinogen
— EPA classifications across all reporting years
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 | Formaldehyde | Freon 113 (CFC-113) | Ammonia | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Nitric acid | Total (lbs) |
| 1996 | — | — | 27 | — | — | 27 |
| 1995 | — | — | 40 | 40 | — | 80 |
| 1994 | — | — | 52 | 56 | 12 | 120 |
| 1993 | 1 | 8,300 | 150 | 36 | 11 | 8,498 |
| 1992 | — | 33,000 | 150 | 30 | 20 | 33,200 |
| 1991 | — | 33,000 | 150 | 60 | 20 | 33,230 |
| 1990 | — | 12,000 | 270 | 73 | 18 | 12,428 |
| 1989 | — | 19,723 | — | — | — | 19,723 |
| 1987 | 281,470 | — | — | — | — | 281,470 |
▎ 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.