TRI facility · TRI 2024 reporting year

Steel Dynamics INC Flat Roll Group Columbus Div

Total reported releases 118k lb held roughly steady year over year (+4%). Total releases concentrations are roughly unchanged from 2010.

1945 AIRPORT RD, Columbus, Mississippi · 331110 · Primary Metals · operated by Steel Dynamics INC

TOTAL RELEASES · 20102024
Bar chart of annual values from 2010 to 2024, in lb. Most recent year (2024): 118k.328k'10'12'14'16'18'20'22'24118k
Anomaly engine

Notable Signals

LONG-ARC IMPROVEMENT · LONG-ARC SHIFT

Zinc compounds

Zinc compounds at Steel Dynamics INC Flat Roll Group Columbus Div have more than three-quarters since 2010 (through 2024).

Chemicals reported · most recent year

What This Facility Releases

GENERALCAS 554-13-2

Lithium carbonate

50k lb · +2% YoY

Lithium carbonate concentrations are up 36% since 2010.

RESPIRATORYCAS N450

Manganese And Manganese Compounds

17k lb · -2% YoY

Manganese And Manganese Compounds concentrations have fallen 32% since 2012.

RESPIRATORYCAS N090

Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)

16k lb · +36% YoY

Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) concentrations are up 85% since 2012.

RESPIRATORYCAS N230

Certain glycol ethers

8k lb · -5% YoY

Certain glycol ethers concentrations have more than doubled since 2017.

GENERALCAS N982

Zinc compounds

8k lb · +8% YoY

Zinc compounds concentrations have more than halved since 2010.

GENERALCAS 71-36-3

n-Butyl alcohol

4k lb · -1% YoY

n-Butyl alcohol concentrations have more than doubled since 2017.

GENERALCAS 95-63-6

1,2,4-Trimethylbenzene

3k lb · -2% YoY

1,2,4-Trimethylbenzene concentrations are up 12% since 2017.

CARCINOGENCAS N495

Nickel And Nickel Compounds

2k lb · +3% YoY

Nickel And Nickel Compounds concentrations are up 90% since 2010.

Equity context · ACS 2018-2022 block-group demographics

Who Lives Next To This Facility

Within 3 miles of this facility (1 Census block groups, population-weighted demographics): a population of 1,458. Why we surface this →

POPULATION SHARE
30.9%

Low-income

POPULATION SHARE
41.3%

People of color

POPULATION SHARE
6.0%

Under age 5

POPULATION SHARE
34.4%

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.