Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
NATIONAL BY-PRODUCTS INC
601 SE 18TH ST, DES MOINES, IA, 50317
Parent company: NA
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases 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.
| Year | Ammonia | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total |
|---|---|---|---|
| 2004 | 1,250 | — | 1,250 |
| 2003 | 1,360 | — | 1,360 |
| 2002 | 1,386 | — | 1,386 |
| 2001 | 1,620 | — | 1,620 |
| 2000 | 1,535 | — | 1,535 |
| 1999 | 1,568 | — | 1,568 |
| 1998 | 1,459 | — | 1,459 |
| 1997 | 1,598 | — | 1,598 |
| 1996 | 500 | — | 500 |
| 1995 | 500 | 5 | 505 |
| 1994 | 500 | 5 | 505 |
| 1993 | 500 | 5 | 505 |
| 1992 | 500 | 5 | 505 |
| 1991 | 500 | 5 | 505 |
| 1990 | 500 | 5 | 505 |