Zip Code 53901
📍 Portage, WI
Toxic Air Emissions Report (2024)
Data Source: EPA TRI (2024) • Updated Nov 2025
4,579.76 lbs
State Score
44
/ 100
National Score
45
/ 100
In 2024, industrial facilities in Portage, WI released over 4,579.76 lbs of pollutants. The primary source was ENCAPSYS LLC, which emitted Methanol into the local air. Air quality in 53901 is relatively consistent with regional baselines.
Top Polluting Facilities
- ENCAPSYS LLCOwned by: MILLIKEN & COMethanol released to air3,542.58 lbsLBS
- ENCAPSYS LLC Cancer RiskOwned by: MILLIKEN & COFormaldehyde released to air745.72 lbsLBS
- FXI INC. - PORTAGE Cancer RiskOwned by: FXI INC.Toluene diisocyanate (mixed isomers) released to air155.00 lbsLBS
- CARDINAL FGOwned by: CARDINAL GLASS INDUSTRIESAmmonia released to air133.18 lbsLBS
- CARDINAL FG Cancer RiskOwned by: CARDINAL GLASS INDUSTRIESLead released to air2.88 lbsLBS
- ENERGIZER MANUFACTURING - PORTAGE PLANTOwned by: ENERGIZER HOLDINGS INCZinc compounds released to air0.2 lbsLBS
- ENERGIZER MANUFACTURING - PORTAGE PLANTOwned by: ENERGIZER HOLDINGS INCManganese compounds released to air0.1 lbsLBS
- HENRY G. MEIGS INC. Cancer RiskOwned by: HERITAGE GROUPPolycyclic aromatic compounds released to air0.097 lbsLBS
Nearby Pollution Sources (< 20 miles)
- Pardeeville, WI (53954) 7.3 mi awayHeavy Industrial Activity99,793.18 lbsAnnual Emissions
- Baraboo, WI (53913) 14.5 mi awayHeavy Industrial Activity79,894.84 lbsAnnual Emissions
- Cambria, WI (53923) 17.9 mi awayHeavy Industrial Activity6,958.07 lbsAnnual Emissions
Check Nearby Zip Codes
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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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