Michigan issued statewide air-quality alert as Canadian wildfire smoke moved in
Michigan EGLE said smoke from ongoing Canadian wildfires could push fine-particle pollution to unhealthy levels beginning July 15, 2026.
fine-particulate pollution
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Massachusetts issued fine-particulate air-quality alert during July smoke episode
Massachusetts issued an Air Quality Action Day for fine particulates on July 17, 2026, during smoky and hazy conditions affecting southern New England, including the Boston area.