2 facilities in Oklahoma reported releasing a combined 33.0k pounds of hydrogen cyanide to air, water, and land in 2024.
| Facility | City | On-site (lb) |
|---|---|---|
| Wynnewood Refining Co | Wynnewood | 32.8k |
| Continental Carbon Co Ponca City Ok Plant | Ponca City | 265 |
← All Hydrogen cyanide releases nationwide · Oklahoma pollution overview