Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
POLYPEPTIDE LABORATORIES INC.
365 MAPLE AVE, TORRANCE, CA, 90503
Parent company: POLYPEPTIDE LABORATORIES INC
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 | Dichloromethane | Acetonitrile | Methyl tert-butyl ether | Methanol | N,N-Dimethylformamide | Total (lbs) |
| 2024 | 6,154 | 5,652 | 1,162 | 1,936 | 2,053 | 16,957 |
| 2023 | 11,891 | 4,511 | 649 | 2,513 | 915 | 20,479 |
| 2022 | 7,161 | 744 | 335 | 467 | 1,329 | 10,036 |
| 2021 | 1,531 | 420 | 328 | 158 | 241 | 2,678 |
| 2020 | 1,110 | 1,118 | 91 | 618 | 2,060 | 4,997 |
| 2019 | 1,277 | 396 | 465 | 221 | 3,058 | 5,417 |
| 2018 | 99 | 195 | 148 | 117 | 420 | 979 |
| 2017 | 25 | 163 | — | 54 | 339 | 582 |
| 2016 | 191 | 2,019 | — | 199 | 339 | 2,748 |
| 2015 | 135 | 643 | — | 360 | 332 | 1,470 |
| 2014 | 182 | 890 | — | 334 | 254 | 1,660 |
| 2013 | 29,914 | 82 | 4,198 | 2,004 | 5 | 36,203 |
| 2012 | 18,910 | 7,040 | 5,770 | 3,866 | 433 | 36,019 |
▎ 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.