Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
AHRENS AGRICULTURAL INDUSTRIES CO.
1000 FERGUSON RD, GRINNELL, IA, 50112
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 | 4,4'-Methylenedi(phenyl isocyanate) | 1,1,1-Trichloroethane | Chlorodifluoromethane (HCFC-22) | Trichlorofluoromethane (CFC-11) | Dichloromethane | Total (lbs) |
| 1995 | — | — | 1,860 | — | — | 1,865 |
| 1991 | — | — | — | 1,250 | — | 1,250 |
| 1990 | 7,250 | 7,250 | — | — | — | 14,500 |
| 1989 | 7,250 | — | — | — | — | 7,250 |
| 1988 | — | — | — | — | 250 | 250 |
▎ 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.