🍃 CleanAirDB

Zip Code 84307

📍 Promontory, UT

Toxic Air Emissions Report (2024)

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

71,855.90 lbs
State Score
12
/ 100
National Score
14
/ 100

In 2024, industrial facilities in Promontory, UT released over 71,855.90 lbs of pollutants. The primary source was NORTHROP GRUMMAN SYSTEMS CORP - PROMONTORY, 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 84307 face significantly higher exposure risks than the national average.

Top Polluting Facilities

  • NORTHROP GRUMMAN SYSTEMS CORP - PROMONTORY
    Owned by: NORTHROP GRUMMAN CORP
    Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) released to air
    70,671.00 lbs
    LBS
  • NORTHROP GRUMMAN SYSTEMS CORP - PROMONTORY Cancer Risk
    Owned by: NORTHROP GRUMMAN CORP
    Polycyclic aromatic compounds released to air
    1,080.86 lbs
    LBS
  • AUTOLIV ASP INC PROMONTORY
    Owned by: AUTOLIV INC
    Copper compounds released to air
    64 lbs
    LBS
  • AUTOLIV ASP INC PROMONTORY
    Owned by: AUTOLIV INC
    Nitrate compounds (water dissociable; reportable only when in aqueous solution) released to air
    39.11 lbs
    LBS
  • NORTHROP GRUMMAN SYSTEMS CORP - PROMONTORY Cancer Risk
    Owned by: NORTHROP GRUMMAN CORP
    Dioxin and dioxin-like compounds released to air
    0.92643 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 Nitrate compounds (water dissociable; reportable only when in aqueous solution)), 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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