Total reported releases 69k lb fell sharply year over year (-40%). Total releases concentrations are roughly unchanged from 2010.
3000 E FRONT ST, Monroe, Michigan · 331110 · Primary Metals · operated by Gerdau USA INC
Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) releases at Gerdau Macsteel Monroe fell from 30k lb to 4k lb (86% lower) between 2023 and 2024.
Zinc compounds concentrations are up 38% since 2010.
Copper And Copper Compounds concentrations have more than doubled since 2010.
Manganese And Manganese Compounds concentrations are up 61% since 2010.
Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) concentrations have more than halved since 2010.
Lead And Lead Compounds concentrations have more than halved since 2010.
Barium And Barium Compounds concentrations have more than halved since 2010.
Vanadium compounds concentrations have more than doubled since 2010.
Nickel And Nickel Compounds concentrations have fallen 39% since 2010.
Within 3 miles of this facility (22 Census block groups, population-weighted demographics): a population of 23,272. 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.