Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NATIONAL SEMICONDUCTOR CORP
1111 W BARDIN RD, ARLINGTON, TX, 76017
Parent company: NATIONAL SEMICONDUCTOR CORP
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 | Acetone | Methanol | Hydrogen fluoride | Ammonia | Nitric acid | Total (lbs) |
| 2009 | — | — | 217 | — | 126 | 674 |
| 2008 | — | — | 566 | 2,922 | 291 | 4,351 |
| 2007 | — | — | 456 | — | 190 | 1,198 |
| 2006 | — | — | 437 | — | 191 | 1,305 |
| 2005 | — | — | 616 | — | 214 | 1,644 |
| 2004 | — | — | 654 | — | 234 | 1,611 |
| 2003 | — | — | 756 | 1,808 | 449 | 3,985 |
| 2002 | — | — | 703 | — | 275 | 1,916 |
| 2001 | — | — | 793 | 2,271 | 283 | 4,239 |
| 2000 | — | — | 1,108 | 1,796 | 803 | 4,878 |
| 1999 | — | — | 1,075 | 1,535 | 782 | 3,492 |
| 1998 | — | 1,719 | 831 | — | 772 | 4,770 |
| 1997 | — | 4,165 | 886 | — | 1,008 | 8,566 |
| 1996 | — | 4,322 | 757 | — | 824 | 9,389 |
| 1995 | — | 4,322 | 602 | — | 688 | 8,644 |
| 1994 | — | 4,114 | 487 | — | 672 | 5,857 |
| 1993 | 23,393 | 4,055 | 222 | — | 67 | 27,873 |
| 1992 | 25,370 | 3,687 | 395 | — | 264 | 29,716 |
| 1991 | 28,739 | 7,430 | 439 | — | 360 | 36,968 |
| 1990 | 28,742 | 2,263 | 590 | — | 80 | 31,675 |
| 1988 | 24,160 | 500 | — | — | 1,000 | 25,660 |
| 1987 | — | — | — | — | — | 8,617 |
▎ 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.