Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
PAM ENGINEERING INC
1308 BAILE'S LN, FREDERICK, MD, 21701
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 | Ammonia | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Copper | Total |
|---|---|---|---|---|
| 1997 | 500 | — | — | 500 |
| 1996 | 500 | 500 | — | 1,000 |
| 1995 | 500 | 500 | — | 1,000 |
| 1994 | 500 | 500 | — | 1,000 |
| 1993 | 500 | 500 | 500 | 1,500 |
| 1992 | 1,150 | 500 | — | 1,650 |
| 1991 | 1,150 | 500 | — | 1,650 |
| 1990 | 1,410 | 500 | — | 1,910 |
| 1989 | — | 500 | — | 500 |