Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ALNYLAM PHARMACEUTICALS
20 COMMERCE WAY, NORTON, MA, 02766
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 | Acetonitrile | Toluene | Pyridine | Total (lbs) | ||
| 2024 | 1,914 | 197 | — | 2,111 | ||
| 2023 | 1,962 | 153 | 42 | 2,157 | ||
| 2022 | 1,384 | 137 | — | 1,521 | ||
| 2021 | 950 | 47 | — | 997 | ||
| 2020 | 652 | 15 | — | 667 | ||
▎ 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.