Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
A.P. GREEN REFRACTORIES
1627 PYRO RD, OAK HILL, OH, 45656
Parent company: AP GREEN INDUSTRIES INC
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 | Phosphoric acid | Aluminum oxide (fibrous forms) | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Total (lbs) | |
| 1998 | 2,225 | — | — | — | 2,225 | |
| 1997 | 2,347 | — | — | — | 2,347 | |
| 1996 | 2,171 | — | — | — | 2,171 | |
| 1995 | 3,783 | — | — | — | 3,783 | |
| 1994 | 8,075 | — | — | — | 8,075 | |
| 1993 | 7,892 | — | 255 | — | 8,147 | |
| 1992 | 12,450 | — | 255 | — | 12,705 | |
| 1991 | 9,324 | — | 255 | — | 9,579 | |
| 1990 | 4,150 | — | — | 250 | 4,400 | |
| 1989 | 937 | — | — | 2 | 939 | |
| 1988 | 750 | 14,695 | — | 248 | 15,693 | |
| 1987 | 750 | 13,640 | — | — | 14,390 | |
▎ 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.