15 facilities in Louisiana reported releasing a combined 786.4k pounds of hydrogen cyanide to air, water, and land in 2024.
| Facility | City | On-site (lb) |
|---|---|---|
| Valero Refining - New Orleans Llc | Norco | 370.6k |
| Citgo Petroleum Corp | Sulphur | 88.2k |
| Chalmette Refining Llc | Chalmette | 82.6k |
| Phillips 66 Lake Charles Refinery | Westlake | 73.4k |
| Alon Refining Krotz Springs Inc | Krotz Springs | 62.5k |
| Placid Refining Co Llc | Port Allen | 40.1k |
| Cabot Corp Canal Plant | Centerville | 39.4k |
| Cabot Corp Ville Platte Plant | Ville Platte | 16.6k |
| Syngenta Crop Protection Llc Saint Gabriel Facility | Saint Gabriel | 4.3k |
| Orion Engineered Carbons-Ivanhoe Carbon Black Plant | Franklin | 3.9k |
| Basf North Geismar Site | Geismar | 2.9k |
| Cornerstone Chemical Co Llc | Westwego | 1.8k |
| Roehm America Llc | Westwego | 17 |
| Addis Carbon Black Plant | Addis | 12 |
| Arq Solutions (Operations) Llc | Coushatta | 3 |
← All Hydrogen cyanide releases nationwide · Louisiana pollution overview