10 facilities in California reported releasing a combined 419.3k pounds of hydrogen cyanide to air, water, and land in 2024.
| Facility | City | On-site (lb) |
|---|---|---|
| Phillips 66 Los Angeles Refinery Wilmington Plant | Wilmington | 150.0k |
| Torrance Refining Co Llc | Torrance | 100.0k |
| Chevron Products Co Richmond Refinery | Richmond | 83.0k |
| Ultramar Inc Wilmington Refinery | Wilmington | 48.0k |
| Martinez Refining Co Llc | Martinez | 13.0k |
| Mitsubishi Chemical Carbon Fiber & Composites Inc. | Sacramento | 11.7k |
| Chevron Products Co. Div Of Chevron Usa Inc. | El Segundo | 4.8k |
| Mesquite Mine | Brawley | 4.7k |
| Equinox Gold Corp Castle Mountain Venture Castle Mountain | Ivanpah | 3.6k |
| Valero Refining Co-Cali Fornia Benicia Refinery | Benicia | 463 |
← All Hydrogen cyanide releases nationwide · California pollution overview