Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ARMSTRONG HOLDING CORP
BARRIO MANGAS, GUAYANILLA, PR, 00656
Parent company: NA
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 | Ammonia | Xylene (mixed isomers) | m-Xylene | Total (lbs) | ||
| 1998 | — | 2 | — | 2 | ||
| 1997 | — | 5 | — | 5 | ||
| 1996 | 5 | 5 | — | 10 | ||
| 1994 | 5 | — | — | 5 | ||
| 1993 | 126 | 3 | — | 129 | ||
| 1992 | — | — | 2 | 2 | ||
▎ 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.