Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MICRON PRODUCTS INC.
25 SAWYER PASSWAY, FITCHBURG, MA, 01420
Parent company: ARRYTHMIA RESEARCH TECHNOLOGY
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 | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Total (lbs) | |
| 2013 | — | — | 5 | — | 5 | |
| 2012 | — | — | 6 | — | 6 | |
| 2011 | — | — | 6 | — | 6 | |
| 2010 | — | — | 17 | — | 17 | |
| 2009 | — | — | 37 | — | 37 | |
| 2008 | — | — | 94 | — | 94 | |
| 2007 | — | — | 15 | — | 15 | |
| 2006 | — | — | 16 | — | 16 | |
| 2005 | — | — | 4 | 103 | 107 | |
| 2004 | — | — | — | 105 | 105 | |
| 2003 | — | — | — | 91 | 91 | |
| 2002 | — | — | 19 | 255 | 274 | |
| 2001 | — | — | 35 | — | 35 | |
| 2000 | — | — | 95 | — | 95 | |
| 1999 | — | — | 37 | — | 37 | |
| 1998 | — | — | 100 | — | 100 | |
| 1997 | — | — | 244 | 53 | 297 | |
| 1996 | — | — | 1,234 | 83 | 1,317 | |
| 1995 | 1,854 | — | 278 | — | 2,132 | |
| 1994 | 655 | 311 | — | — | 966 | |
| 1993 | 1,156 | — | — | — | 1,156 | |
| 1992 | 1,408 | 671 | — | — | 2,079 | |
| 1991 | 967 | 645 | — | — | 1,612 | |
| 1990 | 755 | 333 | — | — | 1,088 | |
| 1989 | — | 305 | — | — | 305 | |
▎ 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.