Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
NORTHROP GRUMMAN SYSTEMS CORP
1212 WINTERSON RD, LINTHICUM HEIGHTS, MD, 21090
Parent company: NORTHROP GRUMMAN CORP
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 | Acetone | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | N-Methyl-2-pyrrolidone | Phosphoric acid | Total |
|---|---|---|---|---|---|
| 2024 | — | 31 | 6,467 | — | 6,498 |
| 2023 | — | 26 | 5,610 | — | 5,636 |
| 2022 | — | 25 | 5,120 | — | 5,145 |
| 2021 | — | 7,791 | — | — | 7,791 |
| 2020 | — | 6,817 | — | — | 6,817 |
| 2019 | — | 7,549 | — | — | 7,549 |
| 2018 | — | 6,088 | — | — | 6,088 |
| 2017 | — | 6,818 | — | — | 6,818 |
| 2016 | — | 9,984 | — | — | 9,984 |
| 2015 | — | 9,010 | — | — | 9,010 |
| 1993 | — | 300 | — | — | 300 |
| 1992 | 9,800 | 300 | — | — | 10,100 |
| 1991 | 7,500 | 1,000 | — | 250 | 8,750 |
| 1990 | 12,000 | 1,000 | — | 250 | 13,250 |
| 1989 | 13,000 | 750 | — | 250 | 14,000 |
| 1988 | 17,000 | 750 | — | 250 | 18,000 |
| 1987 | — | 750 | — | — | 750 |