Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
KOPPERS INDUSTRIES INC
N MARION ST, CARBONDALE, IL, 62901
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 | Creosote | Dibenzofuran | Naphthalene | Biphenyl | Anthracene | Total (lbs) |
| 1991 | 3,790 | — | — | — | — | 3,790 |
| 1990 | 9,075 | — | — | — | — | 9,075 |
| 1989 | — | 665 | 1,536 | — | 561 | 2,762 |
| 1988 | — | 1,365 | — | — | — | 1,365 |
| 1987 | — | — | — | 1,490 | — | 1,490 |
▎ 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.