Zip Code 51105

📍 Sioux City, IA

Toxic Air Emissions Report (2024)

Data Source: EPA TRI (2024) • Updated Nov 2025

4.05 lbs

State Score

/ 100

National Score

/ 100

In 2024, industrial facilities in Sioux City, IA released over 4.05 lbs of pollutants. The primary source was SIOUX CITY FOUNDRY CO, which emitted Nickel into the local air. Air quality in 51105 is relatively consistent with regional baselines.

Top Polluting Facilities

SIOUX CITY FOUNDRY CO Cancer Risk

Owned by: nan

Nickel released to air

1.84 lbs

LBS
SIOUX CITY FOUNDRY CO

Owned by: nan

Manganese released to air

1.5 lbs

LBS
SIOUX CITY FOUNDRY CO

Owned by: nan

Copper released to air

0.41 lbs

LBS
KNIFE RIVER MIDWEST PLANT #4 Cancer Risk

Owned by: nan

Polycyclic aromatic compounds released to air

0.2 lbs

LBS
STANDARD READY MIX CONCRETE CO SIOUX CITY PLANT Cancer Risk

Owned by: CRH AMERICAS INC

Lead released to air

0.07851 lbs

LBS
KNIFE RIVER MIDWEST PLANT #4 Cancer Risk

Owned by: nan

Lead released to air

0.022 lbs

LBS

Nearby Pollution Sources (< 20 miles)

Sergeant Bluff, IA (51054) 7.2 mi away

Heavy Industrial Activity

1,711,281.89 lbs

Annual Emissions
Sioux City, IA (51101) 1.1 mi away

Heavy Industrial Activity

940,746.00 lbs

Annual Emissions
Dakota City, NE (68731) 9.2 mi away

Heavy Industrial Activity

50,616.00 lbs

Annual Emissions

Check Nearby Zip Codes

Report: 51106

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Protect Your Lungs

The primary pollutants detected here are likely heavy particulates. To protect your lungs, ensure you use a True HEPA (H13) filter, which captures 99.97% of airborne particles like Lead.

View Recommended HEPA Filters →

Chemical Breakdown

Top 5 Pollutants by Weight

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