Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NATIONAL AERONAUTICS & SPACE ADMINIST AMES RESEARCH CENTER
MAIL STATION 204-15, MOFFETT FIELD, CA, 94035
Parent company: NATIONAL AERONAUTICS & SPACE ADMINISTRATION
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 | Dichlorodifluoromethane (CFC-12) | Freon 113 (CFC-113) | Xylene (mixed isomers) | Total (lbs) | ||
| 1997 | — | — | 76 | 76 | ||
| 1996 | 5 | 103 | 220 | 328 | ||
| 1995 | 10 | 266 | 248 | 524 | ||
| 1994 | 2,400 | 800 | — | 3,200 | ||
▎ 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.