Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
5300 MAIN ST, DULUTH, MN, 55807
Parent company: ALLETE INC/MINNESOTA POWER
Reported on-site TRI releases in pounds, grouped by reporting year.
The 10 chemicals with the highest cumulative on-site releases across all available years.
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| Year | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Zinc compounds | Manganese And Manganese Compounds | Lead compounds | Lead And Lead Compounds | Total |
|---|---|---|---|---|---|---|
| 2024 | 34,000 | 6 | — | — | 31 | 34,037 |
| 2023 | 33,000 | 6 | — | — | 29 | 33,035 |
| 2022 | 65,000 | 10 | — | — | 66 | 65,113 |
| 2021 | 45,210 | 29,872 | 20,402 | 210 | — | 95,694 |