Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MASK-OFF CO INC
345 W MAPLE AVE, MONROVIA, CA, 91016
Parent company: NA
Carcinogen
— EPA classifications across all reporting years
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 | Toluene | Methyl ethyl ketone | 1,1,1-Trichloroethane | Ammonia | Di(2-ethylhexyl) phthalate | Total (lbs) |
| 2003 | 2,765 | 4,070 | — | 250 | — | 7,085 |
| 2002 | 2,370 | 5,550 | — | 250 | — | 8,170 |
| 2001 | 3,950 | 4,440 | — | 250 | — | 8,640 |
| 2000 | 4,600 | 2,971 | — | 236 | — | 7,807 |
| 1999 | 3,904 | 9,281 | — | 212 | — | 13,397 |
| 1998 | 4,200 | 6,910 | — | 238 | — | 11,348 |
| 1997 | 4,600 | 5,442 | — | 208 | — | 10,250 |
| 1996 | 3,904 | 5,576 | 4,474 | 168 | — | 14,122 |
| 1995 | 4,215 | 1,700 | — | 322 | — | 6,237 |
| 1994 | 4,215 | 1,700 | 7,210 | 322 | — | 13,447 |
| 1993 | 4,834 | 2,150 | 7,606 | 659 | — | 15,249 |
| 1992 | 4,450 | 2,150 | 7,950 | 1,000 | 5 | 15,555 |
| 1991 | 5,250 | 2,250 | 6,750 | 850 | 5 | 15,105 |
| 1990 | 8,450 | 3,750 | 10,750 | 1,140 | 5 | 24,095 |
| 1989 | 7,750 | 2,050 | 6,800 | 800 | — | 17,400 |
| 1988 | — | — | — | — | 8 | 8 |
| 1987 | 100 | — | — | — | — | 100 |
▎ 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.