Total reported releases 153k lb fell sharply year over year (-57%). Total releases concentrations have more than halved since 2010.
2200 STATE HWY 837, Jefferson Hills, Pennsylvania · 325211 · Chemicals · operated by Yule Catto INC
Nitrate compounds (water dissociable; reportable only when in aqueous solution) releases at Synthomer Jefferson Hills LLC fell from 209k lb to 19k lb (91% lower) between 2023 and 2024.
Ammonia at Synthomer Jefferson Hills LLC have more than three-quarters since 2010 (through 2024).
Total reported releases at Synthomer Jefferson Hills LLC have more than three-quarters since 2010 (through 2024).
Toluene at Synthomer Jefferson Hills LLC have more than halved since 2010 (through 2024).
Ammonia concentrations have more than halved since 2010.
Toluene concentrations have more than halved since 2010.
Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations have more than halved since 2019.
Styrene concentrations are up 89% since 2010.
Cumene concentrations are up 13% since 2010.
Xylene (mixed isomers) concentrations have more than halved since 2010.
Ethylbenzene concentrations have more than halved since 2010.
1,2,4-Trimethylbenzene concentrations have more than halved since 2010.
Within 3 miles of this facility (14 Census block groups, population-weighted demographics): a population of 16,459. Why we surface this →
Low-income
People of color
Under age 5
Over age 64
Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 3-mile buffer around this facility (from USEPA-clone/EJAM-open blockgroupstats). Indicator-level percentile and EJ-disparity scores are surfaced on the county page and the state page — they describe wider regional exposure burdens, not effects attributable to a single facility.
Source. EPA Toxics Release Inventory · retrieved 2026-05-07. Reporting year 2024. TRI is a federal public-domain dataset under 17 USC §105.
What this is not. TRI quantifies releases reported by the facility under EPCRA §313 — not ambient air or water concentrations measured at receptors. We do not attribute individual health outcomes to specific facilities; that exceeds what the data can support.