Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
AMERICAS STYRENICS LLC - HANGING ROCK
925 COUNTY RD 1A 4563WMRCSS925CU, IRONTON, OH, 45638
Parent company: AMERICAS STYRENICS LLC
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 | Ethylbenzene | Acrylonitrile | Zinc compounds | Total (lbs) | |
| 2024 | 2,702 | 190 | — | 3 | 2,895 | |
| 2023 | 2,662 | 240 | — | 3 | 2,905 | |
| 2022 | 3,251 | 219 | — | 6 | 3,476 | |
| 2021 | 2,220 | 246 | — | 12 | 2,478 | |
| 2020 | 1,670 | 235 | — | 11 | 1,916 | |
| 2019 | 1,870 | 271 | — | 18 | 2,159 | |
| 2018 | 2,571 | 244 | — | 19 | 2,834 | |
| 2017 | 2,610 | 246 | — | 1 | 2,857 | |
| 2016 | 2,753 | 247 | — | 1 | 3,001 | |
| 2015 | 1,885 | 266 | — | 1 | 2,152 | |
| 2014 | 2,238 | 270 | — | 1 | 2,509 | |
| 2013 | 2,226 | 271 | — | 1 | 2,498 | |
| 2012 | 2,016 | 290 | — | 4 | 2,310 | |
| 2011 | 3,337 | 269 | — | 2 | 3,608 | |
| 2010 | 1,948 | 272 | — | 2 | 2,222 | |
| 2009 | 2,285 | 229 | — | 2 | 2,516 | |
| 2008 | 572 | 150 | 152 | — | 874 | |
▎ 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.