Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NATIONAL SEMICONDUCTOR CORP
313 FAIRCHILD DR, MOUNTAIN VIEW, CA, 94039
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 | Freon 113 (CFC-113) | Acetone | 1,2-Dichlorobenzene | Hydrogen fluoride | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total (lbs) |
| 1989 | — | 1,293 | 978 | 28 | 53 | 2,542 |
| 1988 | 8,128 | — | 88 | 87 | 89 | 8,528 |
| 1987 | 17,205 | 7,870 | — | 762 | — | 25,886 |
▎ 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.