Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
PPG INDUSTRIES INC
21500 GIBRALTAR RD, FLAT ROCK, MI, 48134
Parent company: PPG INDUSTRIES INC
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 | Xylene (mixed isomers) | Toluene | Ethylbenzene | Methyl ethyl ketone | n-Butyl alcohol | Total (lbs) |
| 1992 | 9,276 | 1,964 | 2,361 | 1,136 | 2,677 | 17,414 |
| 1991 | 7,721 | 2,030 | 2,381 | 828 | — | 12,960 |
| 1990 | 2,596 | 6,540 | 5,843 | 3,493 | 2,496 | 21,223 |
| 1989 | 250 | 250 | 250 | 750 | 250 | 1,750 |
| 1988 | 1,300 | — | — | — | — | 1,300 |
| 1987 | — | 2,200 | 750 | 750 | — | 3,700 |
▎ 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.