2 facilities in Montana reported releasing a combined 14.4k pounds of arsenic compounds to air, water, and land in 2024.
| Facility | City | On-site (lb) |
|---|---|---|
| Colstrip Steam Electric Station | Colstrip | 14.4k |
| Marks-Miller Post & Pole Inc | Clancy | 0 |
← All Arsenic compounds releases nationwide · Montana pollution overview