3 facilities in Illinois reported releasing a combined 671 pounds of hydrogen cyanide to air, water, and land in 2024.
| Facility | City | On-site (lb) |
|---|---|---|
| Wood River Refinery | Roxana | 420 |
| Exxonmobil Oil Corp Joliet Refinery | Channahon | 250 |
| Veolia N.a. Inc. | Sauget | 1 |
← All Hydrogen cyanide releases nationwide · Illinois pollution overview