Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
PFIZER INC GROTON SITE
445 EASTERN POINT RD MS4157, GROTON, CT, 06340
Parent company: PFIZER INC
Carcinogen
PBT
— 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 | Methanol | Methyl isobutyl ketone | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Ammonia | n-Butyl alcohol | Total (lbs) |
| 2008 | 3,700 | 755 | — | — | — | 12,418 |
| 2007 | 4,000 | — | 170,000 | 6,800 | — | 217,674 |
| 2006 | 6,750 | — | 200,000 | 1,980 | — | 247,470 |
| 2005 | 12,400 | — | 130,000 | 1,250 | — | 168,608 |
| 2004 | 19,200 | — | 150,000 | 2,500 | — | 244,122 |
| 2003 | 24,300 | — | 310,000 | 1,250 | — | 365,708 |
| 2002 | 22,200 | — | 230,000 | 1,700 | — | 299,017 |
| 2001 | 35,200 | — | 260,000 | 1,250 | — | 346,645 |
| 2000 | 26,300 | — | 140,000 | — | 6,900 | 207,796 |
| 1999 | 135,800 | — | 180,000 | — | — | 390,690 |
| 1998 | 284,800 | 11,550 | 140,000 | 5,950 | 9,750 | 602,345 |
| 1997 | 376,200 | 29,300 | 130,000 | 2,100 | 1,250 | 654,260 |
| 1996 | 585,000 | 22,950 | 64,000 | 5,355 | 1,005 | 937,695 |
| 1995 | 1,310,000 | 52,000 | 70,000 | 3,100 | 750 | 1,761,385 |
| 1994 | 2,170,000 | 73,100 | — | 121,770 | — | 2,845,891 |
| 1993 | 1,833,000 | 69,900 | — | 266,500 | — | 2,749,300 |
| 1992 | 2,550,000 | 66,500 | — | 271,500 | — | 3,324,145 |
| 1991 | 2,710,000 | 179,000 | — | 348,300 | 200,000 | 3,927,622 |
| 1990 | 2,320,000 | 14,600 | — | 454,000 | 250,000 | 4,006,403 |
| 1989 | 2,886,232 | 452,514 | — | 39,404 | 871,500 | 4,922,167 |
| 1988 | 4,103,193 | 774,492 | — | 46,202 | — | 5,801,323 |
| 1987 | — | 1,128,000 | — | — | — | 1,170,900 |
▎ 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.