6 facilities in Montana reported releasing a combined 36.3k pounds of hydrogen sulfide to air, water, and land in 2024.
| Facility | City | On-site (lb) |
|---|---|---|
| Montana Sulphur & Chemical Co | Billings | 15.5k |
| Jupiter Sulphur Llc | Billings | 5.9k |
| Par Montana Billings Refinery | Billings | 5.6k |
| Chs Inc. Laurel Refinery | Laurel | 4.9k |
| Calumet Montana Refining Llc. | Great Falls | 3.9k |
| Phillips 66 Co Billings Refinery | Billings | 444 |
← All Hydrogen sulfide releases nationwide · Montana pollution overview