Canadian wildfires prompt another air quality alert for coastal Maine

PORTLAND PRESS HERALD • June 9, 2025

The Maine Department of Environmental Protection says smoke from Canadian wildfires is again impacting air quality in Maine. Ground-level pollution concentrations in southwest coastal Maine were in the “unhealthy for sensitive groups” level Sunday and have continued in that range into Monday. The elevated level is most likely to impact children, older adults, and people with respiratory or heart disease.