Total reported releases
Total reported releases at Armstrong World Industries have more than doubled since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Armstrong World Industries
Total reported releases 364k lb rose meaningfully year over year (+26%). Total releases concentrations have more than doubled since 2010.
1507 RIVER RD, Marietta, Pennsylvania · 339999 · Miscellaneous Manufacturing · operated by Armstrong World Industries INC
Anomaly engine
Notable Signals
Manganese And Manganese Compounds
Manganese And Manganese Compounds releases at Armstrong World Industries rose from 138k lb to 212k lb between 2023 and 2024.
Chemicals reported · most recent year
What This Facility Releases
Manganese And Manganese Compounds
Manganese And Manganese Compounds concentrations have more than doubled since 2012.
Ammonia
Ammonia concentrations are roughly unchanged from 2012.
Formaldehyde
Formaldehyde concentrations have fallen 24% since 2010.
Lead
Lead concentrations are roughly unchanged from 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (9 Census block groups, population-weighted demographics): a population of 12,636. Why we surface this →
13.6%
Low-income
11.9%
People of color
8.0%
Under age 5
16.3%
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.