Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ZENECA INC RICHMOND AG PLANT
1415 S 47TH ST, RICHMOND, CA, 948044002
Parent company: ZENECA 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 | Carbon disulfide | Chlorobenzene | 1,1,1-Trichloroethane | Molinate | Metham sodium | Total (lbs) |
| 1997 | — | — | — | 64 | — | 64 |
| 1996 | 18,800 | — | — | 87 | 3 | 18,890 |
| 1995 | 20,100 | — | — | 71 | 3 | 20,174 |
| 1994 | 8,748 | 148 | — | — | — | 8,896 |
| 1993 | 8,272 | 153 | — | — | — | 8,425 |
| 1992 | 4,162 | 187 | — | — | — | 4,349 |
| 1991 | 4,695 | 300 | 250 | — | — | 5,245 |
| 1990 | 3,600 | 340 | — | — | — | 3,940 |
| 1989 | — | 120 | — | — | — | 120 |
| 1988 | — | 475 | — | — | — | 478 |
| 1987 | — | — | — | — | — | 3 |
▎ 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.