Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
WYETH PHARMACEUTICALS
611 E NIELDS ST, WEST CHESTER, PA, 19382
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 | Dichloromethane | Acetone | Acetonitrile | Methyl isobutyl ketone | Methanol | Total (lbs) |
| 2003 | 1,047 | — | — | — | — | 1,047 |
| 2002 | 1,349 | — | 212 | — | — | 1,561 |
| 2001 | 1,289 | — | 204 | — | — | 1,493 |
| 2000 | 1,240 | — | 200 | — | — | 1,440 |
| 1998 | 830 | — | 300 | — | — | 1,130 |
| 1997 | 1,230 | — | — | — | — | 1,230 |
| 1996 | 1,270 | — | 350 | — | — | 1,620 |
| 1995 | 7,730 | — | 2,200 | 3,400 | — | 13,370 |
| 1994 | 7,630 | — | 2,300 | 2,800 | — | 12,810 |
| 1993 | 29,030 | 10,300 | 5,600 | 1,400 | — | 46,410 |
| 1992 | 32,300 | 12,300 | 8,400 | 3,600 | — | 56,680 |
| 1991 | 30,200 | 14,100 | 5,100 | 4,750 | — | 54,650 |
| 1990 | 33,200 | 11,900 | 11,600 | 5,000 | — | 62,700 |
| 1989 | 151,900 | 4,350 | 54,800 | 1,100 | — | 212,650 |
| 1988 | — | 21,000 | 24,000 | — | — | 45,500 |
| 1987 | — | 46,114 | — | 4,800 | 6,150 | 57,564 |
▎ 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.