🍃 CleanAirDB

Zip Code 15122

📍 West Mifflin, PA

Toxic Air Emissions Report (2024)

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

103,397.51 lbs
State Score
7
/ 100
National Score
11
/ 100

In 2024, industrial facilities in West Mifflin, PA released over 103,397.51 lbs of pollutants. The primary source was USS MON VALLEY WORKS - IRVIN PLANT, which emitted large quantities of Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) into the local air. Residents of 15122 face significantly higher exposure risks than the national average.

Top Polluting Facilities

  • USS MON VALLEY WORKS - IRVIN PLANT
    Owned by: US STEEL CORP
    Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) released to air
    47,060.00 lbs
    LBS
  • LIBERTY PULTRUSIONS Cancer Risk
    Owned by: nan
    Styrene released to air
    28,824.91 lbs
    LBS
  • USS MON VALLEY WORKS - IRVIN PLANT
    Owned by: US STEEL CORP
    Ethylene released to air
    26,570.00 lbs
    LBS
  • SAFETY-KLEEN SYSTEMS WEST MIFFLIN (WMP)
    Owned by: CLEAN HARBORS INC
    Methanol released to air
    699.00 lbs
    LBS
  • USS MON VALLEY WORKS - IRVIN PLANT Cancer Risk
    Owned by: US STEEL CORP
    Benzene released to air
    199.00 lbs
    LBS
  • USS MON VALLEY WORKS - IRVIN PLANT
    Owned by: US STEEL CORP
    Zinc compounds released to air
    35 lbs
    LBS
  • USS MON VALLEY WORKS - IRVIN PLANT Cancer Risk
    Owned by: US STEEL CORP
    Nickel compounds released to air
    7 lbs
    LBS
  • SAFETY-KLEEN SYSTEMS WEST MIFFLIN (WMP)
    Owned by: CLEAN HARBORS INC
    Ethylene glycol released to air
    2 lbs
    LBS
  • USS MON VALLEY WORKS - IRVIN PLANT
    Owned by: US STEEL CORP
    Lead compounds released to air
    0.6 lbs
    LBS

Nearby Pollution Sources (< 20 miles)

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Protect Your Lungs

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