Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ZOLTEK CORP
27 GUENTHER BLVD, SAINT PETERS, MO, 63376
Parent company: ZOLTEK CORP
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 | Styrene | Total (lbs) | ||||
| 2024 | 2,368 | 2,368 | ||||
| 2023 | 1,927 | 1,927 | ||||
| 2022 | 2,320 | 2,320 | ||||
| 2021 | 15,085 | 15,085 | ||||
| 2020 | 14,900 | 14,900 | ||||
| 2019 | 3,980 | 3,980 | ||||
| 2018 | 3,600 | 3,600 | ||||
| 2017 | 6,398 | 6,398 | ||||
| 2016 | 4,474 | 4,474 | ||||
| 2015 | 40,767 | 40,767 | ||||
| 2014 | 9,842 | 9,842 | ||||
▎ 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.