Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
NATIONAL SEMICONDUCTOR CORP
7 COMMERCE DR, DANBURY, CT, 06810
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 | Sodium sulfate (solution) | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Xylene (mixed isomers) | Freon 113 (CFC-113) | Sodium hydroxide (solution) | Total |
|---|---|---|---|---|---|---|
| 1989 | — | 220 | 14,371 | 12,200 | — | 33,145 |
| 1988 | — | 11,250 | 7,850 | 9,800 | — | 29,400 |
| 1987 | 540,000 | 18,250 | — | — | 21,000 | 588,050 |