Naphthalene
Naphthalene releases at US Doe Hanford Site rose from 2k lb to 219k lb (96.0×) between 2023 and 2024.
TRI facility · TRI 2024 reporting year
US Doe Hanford Site
Total reported releases 354k lb more than doubled year over year (+83%). Total releases concentrations have more than halved since 2010.
2420 STEVENS CENTER PL, Richland, Washington · 924110 · Other · operated by US Department Of Energy
Anomaly engine
Notable Signals
Lead
Lead releases at US Doe Hanford Site fell from 172k lb to 73k lb (58% lower) between 2023 and 2024.
Lead
Lead at US Doe Hanford Site have more than three-quarters since 2010 (through 2024).
Total reported releases
Total reported releases at US Doe Hanford Site have more than three-quarters since 2010 (through 2024).
Chemicals reported · most recent year
What This Facility Releases
Naphthalene
Naphthalene concentrations have more than doubled since 2011.
Lead
Lead concentrations have more than halved since 2010.
Lithium carbonate
Lithium carbonate volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Toluene
Toluene concentrations are up 64% since 2010.
Zinc (fume or dust)
Zinc (fume or dust) volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations have more than doubled since 2010.
Propylene
Propylene 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 (13 Census block groups, population-weighted demographics): a population of 22,555. Why we surface this →
28.4%
Low-income
25.5%
People of color
5.6%
Under age 5
16.1%
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.