🍃 CleanAirDB

Zip Code 61327

📍 Hennepin, IL

Toxic Air Emissions Report (2024)

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

82,289.61 lbs
State Score
10
/ 100
National Score
13
/ 100

In 2024, industrial facilities in Hennepin, IL released over 82,289.61 lbs of pollutants. The primary source was WASHINGTON MILLS HENNEPIN INC, which emitted large quantities of Carbonyl sulfide into the local air. Residents of 61327 face significantly higher exposure risks than the national average.

Top Polluting Facilities

  • WASHINGTON MILLS HENNEPIN INC
    Owned by: WASHINGTON MILLS ELECTRO MINERALS CORP
    Carbonyl sulfide released to air
    19,979.72 lbs
    LBS
  • MARQUIS ENERGY LLC
    Owned by: nan
    n-Hexane released to air
    17,461.00 lbs
    LBS
  • MARQUIS ENERGY LLC Cancer Risk
    Owned by: nan
    Acetaldehyde released to air
    16,232.00 lbs
    LBS
  • WASHINGTON MILLS HENNEPIN INC
    Owned by: WASHINGTON MILLS ELECTRO MINERALS CORP
    Hydrogen sulfide released to air
    5,771.70 lbs
    LBS
  • MARQUIS ENERGY LLC Cancer Risk
    Owned by: nan
    Formaldehyde released to air
    4,728.00 lbs
    LBS
  • MARQUIS ENERGY LLC
    Owned by: nan
    Methanol released to air
    3,794.00 lbs
    LBS
  • MARQUIS ENERGY LLC Cancer Risk
    Owned by: nan
    Acrolein released to air
    3,036.00 lbs
    LBS
  • MARQUIS ENERGY LLC
    Owned by: nan
    Formic acid released to air
    3,014.00 lbs
    LBS
  • WASHINGTON MILLS HENNEPIN INC
    Owned by: WASHINGTON MILLS ELECTRO MINERALS CORP
    Carbon disulfide released to air
    2,530.76 lbs
    LBS
  • MARQUIS ENERGY LLC
    Owned by: nan
    Ammonia released to air
    1,584.86 lbs
    LBS
  • MARQUIS ENERGY LLC
    Owned by: nan
    Xylene (mixed isomers) released to air
    1,375.00 lbs
    LBS
  • MARQUIS XT LLC
    Owned by: nan
    Methanol released to air
    701.00 lbs
    LBS
  • MARQUIS ENERGY LLC Cancer Risk
    Owned by: nan
    Ethylbenzene released to air
    667.00 lbs
    LBS
  • MARQUIS ENERGY LLC
    Owned by: nan
    Toluene released to air
    528.00 lbs
    LBS
  • MARQUIS ENERGY LLC
    Owned by: nan
    Nitric acid released to air
    522.00 lbs
    LBS
  • MARQUIS ENERGY LLC Cancer Risk
    Owned by: nan
    Benzene released to air
    247.00 lbs
    LBS
  • MARQUIS ENERGY LLC
    Owned by: nan
    1,2,4-Trimethylbenzene released to air
    117.17 lbs
    LBS
  • MARQUIS CONCRETE & STONE LLC
    Owned by: nan
    Nitrate compounds (water dissociable; reportable only when in aqueous solution) released to air
    0.36871 lbs
    LBS
  • MARQUIS CONCRETE & STONE LLC Cancer Risk
    Owned by: nan
    Lead released to air
    0.0282 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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