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MPCA Projects Active Summer for Minnesota Air Alerts

A strong El Niño sets up warmer, drier weather that favors pollution.

Overview

  • Minnesota’s Pollution Control Agency released its summer outlook Thursday, calling for 12 to 16 days affected by wildfire smoke and 4 to 6 days with ozone unhealthy for sensitive groups.
  • Forecasters tie the risk to a strong El Niño and expected drought, which bring more warm, sunny days that help ozone form and raise the odds of wildfire smoke.
  • The highest risk areas include Twin Cities suburbs and parts of southeastern Minnesota near Rochester, where local geography and heat can trap bad air close to the ground.
  • Officials urge residents to check alerts, limit outdoor exertion on poor-air days, and use filtered indoor air, noting that smoke’s fine particles and ozone can strain hearts and lungs.
  • The MPCA says conditions look similar to 2024; the Twin Cities logged 23 smoke-affected days last year, and a recent American Lung Association report ranked the metro poorly for short-term particle and ozone pollution.