Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
VYGEN CORP
MIDDLE RD, ASHTABULA, OH, 44004
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 | Vinyl chloride | Vinyl acetate | Trichloroethylene | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Sodium hydroxide (solution) | Total (lbs) |
| 1992 | 44,650 | 1,505 | 505 | 15 | — | 46,675 |
| 1991 | 42,570 | 2,805 | 505 | 15 | — | 45,895 |
| 1990 | 39,100 | 2,801 | 505 | 260 | — | 42,666 |
| 1989 | 40,499 | 1,886 | 500 | 250 | — | 43,135 |
| 1988 | — | 1,606 | — | — | — | 1,606 |
| 1987 | 33,701 | 3,518 | — | — | 13 | 37,232 |
▎ 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.