Zip Code 37148

📍 Portland, TN

Toxic Air Emissions Report (2024)

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

28,543.54 lbs

State Score

/ 100

National Score

/ 100

In 2024, industrial facilities in Portland, TN released over 28,543.54 lbs of pollutants. The primary source was ASCENT BUILDINGS LLC, which emitted large quantities of Manganese into the local air. Residents of 37148 face significantly higher exposure risks than the national average.

Top Polluting Facilities

ASCENT BUILDINGS LLC

Owned by: nan

Manganese released to air

15,900.00 lbs

LBS
ASCENT BUILDINGS LLC

Owned by: nan

Mixture released to air

12,008.00 lbs

LBS
KYOWA AMERICA CORP

Owned by: nan

Toluene released to air

328.00 lbs

LBS
KYOWA AMERICA CORP

Owned by: nan

Xylene (mixed isomers) released to air

293.00 lbs

LBS
KIRBY BUILDING SYSTEM

Owned by: NUCOR CORP

Manganese released to air

14.49 lbs

LBS
KIRBY BUILDING SYSTEM Cancer Risk

Owned by: NUCOR CORP

Lead released to air

0.05 lbs

LBS

Nearby Pollution Sources (< 20 miles)

Gallatin, TN (37066) 13.1 mi away

Heavy Industrial Activity

132,034.06 lbs

Annual Emissions
Franklin, KY (42134) 11.5 mi away

Heavy Industrial Activity

28,363.15 lbs

Annual Emissions
Goodlettsville, TN (37072) 19.7 mi away

Heavy Industrial Activity

18,507.00 lbs

Annual Emissions

Check Nearby Zip Codes

Report: 37138 Report: 37160 Report: 37134 Report: 37166 Report: 37167 Report: 37127

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Protect Your Lungs

Because toxic gases and VOCs were detected in this area (likely from the Toluene), 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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