Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
DYNASOL INC
330 PINE ST., CANTON, MA, 02021
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 | Ammonia | Butyl acrylate | Ethyl acrylate | Methyl methacrylate | Styrene | Total (lbs) |
| 2024 | — | — | — | — | — | 135 |
| 2023 | — | — | — | — | — | 140 |
| 2022 | — | — | — | — | — | 139 |
| 2021 | — | — | — | — | — | 52 |
| 2020 | — | — | — | — | — | 120 |
| 2019 | — | — | — | — | — | 3 |
| 2018 | — | — | — | — | — | 4 |
| 2017 | — | — | — | — | — | 4 |
| 2016 | — | — | — | — | — | 4 |
| 2015 | — | — | — | — | — | 6 |
| 2014 | — | — | — | — | — | 7 |
| 2013 | — | — | — | — | — | 6 |
| 2012 | — | — | — | — | — | 3 |
| 2011 | — | — | — | — | — | 3 |
| 2010 | — | — | — | — | — | 4 |
| 2009 | — | — | — | — | — | 6 |
| 2008 | — | — | — | — | — | 5 |
| 1993 | 255 | 255 | 255 | 255 | 255 | 1,275 |
| 1992 | 755 | 255 | 255 | 255 | 255 | 1,775 |
| 1991 | 755 | 255 | 255 | 255 | 255 | 1,775 |
| 1990 | 1,000 | 255 | 255 | 255 | 255 | 2,020 |
| 1989 | 1,000 | 500 | 500 | 500 | 500 | 3,000 |
| 1988 | — | — | — | 1,000 | 1,000 | 2,000 |
| 1987 | — | 1,000 | 1,000 | — | — | 2,000 |
▎ 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.