Polycyclic aromatic compounds
Polycyclic aromatic compounds at Century Aluminum Sebree LLC have more than three-quarters since 2010 (through 2024).
Total reported releases 509k lb fell modestly year over year (-11%). Total releases concentrations are roughly unchanged from 2010.
9404 STATE RT 2096, Robards, Kentucky · 331313 · Primary Metals · operated by Century Aluminum Co
Polycyclic aromatic compounds at Century Aluminum Sebree LLC have more than three-quarters since 2010 (through 2024).
Carbonyl sulfide concentrations are roughly unchanged from 2010.
Hydrogen fluoride concentrations are roughly unchanged from 2010.
Naphthalene concentrations have more than doubled since 2010.
Polycyclic aromatic compounds concentrations have more than halved since 2010.
Manganese And Manganese Compounds concentrations are up 12% since 2010.
Nickel And Nickel Compounds concentrations are up 12% since 2010.
Benzo[g,h,i]perylene concentrations have more than halved since 2010.
Lead And Lead Compounds concentrations are up 11% since 2010.
Within 3 miles of this facility (1 Census block groups, population-weighted demographics): a population of 1,125. 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.