Lead And Lead Compounds
Lead And Lead Compounds at Mosaic Fertilizer LLC Uncle Sam Plant have more than three-quarters since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Mosaic Fertilizer LLC Uncle Sam Plant
Total reported releases 308k lb rose meaningfully year over year (+30%). Total releases concentrations have fallen 40% since 2010.
7250 HWY 44, Uncle Sam, Louisiana · 325312 · Chemicals · operated by The Mosaic Co
Anomaly engine
Notable Signals
Chemicals reported · most recent year
What This Facility Releases
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have fallen 24% since 2010.
Lead And Lead Compounds
Lead And Lead Compounds concentrations have more than halved since 2010.
Hydrogen sulfide
Hydrogen sulfide concentrations have fallen 27% since 2012.
Hydrogen fluoride
Hydrogen fluoride concentrations have more than halved since 2010.
Mercury And Mercury Compounds
Mercury And Mercury Compounds concentrations have more than halved since 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
St. James Parish County, LA (no Census block groups within 3 miles — falling back to containing county): a population of 20,090. Why we surface this →
11.5%
Low-income
51.0%
People of color
6.1%
Under age 5
18.4%
Over age 64
Source: Census ACS 2018-2022 (5-year), county-level fallback. 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.