Zip Code 63366

📍 O Fallon, MO

Toxic Air Emissions Report (2024)

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

2,210.20 lbs

State Score

/ 100

National Score

/ 100

In 2024, industrial facilities in O Fallon, MO released over 2,210.20 lbs of pollutants. The primary source was O'FALLON CASTING, which emitted Ammonia into the local air. Air quality in 63366 is relatively consistent with regional baselines.

Top Polluting Facilities

O'FALLON CASTING

Owned by: nan

Ammonia released to air

2,100.00 lbs

LBS
O'FALLON CASTING

Owned by: nan

Nitric acid released to air

110.00 lbs

LBS
PITTSBURGH GLASS WORKS LLC Cancer Risk

Lead released to air

0.2 lbs

LBS

Nearby Pollution Sources (< 20 miles)

Wentzville, MO (63385) 6.1 mi away

Heavy Industrial Activity

476,617.61 lbs

Annual Emissions
Earth City, MO (63045) 15.4 mi away

Heavy Industrial Activity

10,798.05 lbs

Annual Emissions
Saint Peters, MO (63376) 7.1 mi away

Heavy Industrial Activity

7,839.00 lbs

Annual Emissions

Check Nearby Zip Codes

Report: 63376 Report: 63353 Report: 63379 Report: 63352 Report: 63351 Report: 63350

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Protect Your Lungs

Because toxic gases and VOCs were detected in this area (likely from the Ammonia), standard filters are not enough. We strongly recommend an Activated Carbon purifier to adsorb these fumes.

View Recommended Carbon Filters →

Chemical Breakdown

Top 5 Pollutants by Weight

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