Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SIGMA LIFE SCIENCES
9186 SIX PINES SUITE 100, THE WOODLANDS, TX, 77380
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 | N,N-Dimethylformamide | Dichloromethane | 1,2-Dichloroethane | Total (lbs) | |
| 2024 | 1,505 | 255 | 255 | — | 2,015 | |
| 2023 | 1,505 | 255 | 255 | — | 2,015 | |
| 2022 | 1,505 | — | 255 | — | 1,760 | |
| 2021 | 1,505 | 255 | 255 | — | 2,015 | |
| 2020 | 1,305 | 255 | 255 | — | 1,815 | |
| 2019 | 1,405 | 255 | 255 | — | 1,915 | |
| 2018 | 1,465 | 255 | 255 | — | 1,975 | |
| 2017 | 1,465 | 1,465 | 255 | — | 3,185 | |
| 2016 | 1,465 | 1,465 | 255 | — | 3,185 | |
| 2015 | 10 | — | 10 | — | 20 | |
| 2014 | 10 | — | 10 | — | 20 | |
| 2013 | 10 | 10 | 10 | — | 30 | |
| 2012 | 10 | 10 | 10 | — | 30 | |
| 2011 | 10 | 10 | 10 | — | 30 | |
| 2010 | 6 | 6 | 6 | — | 18 | |
| 2009 | 6 | 6 | 6 | — | 18 | |
| 2008 | 6 | 6 | 6 | — | 18 | |
| 2007 | 10 | 10 | 10 | 10 | 40 | |
| 2006 | 10 | 10 | 10 | 10 | 40 | |
▎ 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.