Portland, Maine – People along Maine’s southern and midcoast could face unhealthy air quality by late Wednesday morning, as a combination of rising ozone levels and wildfire smoke drifts into the region.
According to the Maine Department of Environmental Protection, an Air Quality Alert is in effect from 11 a.m. Wednesday to 11 p.m. Thursday. Ozone concentrations are expected to reach “Unhealthy for Sensitive Groups” across York, Cumberland, Sagadahoc, Lincoln, Knox, and Waldo counties. Additionally, fine particle pollution from Canadian wildfires is pushing levels into the moderate range statewide.
Health officials warn that heat and humidity could magnify the effects of poor air. Children, seniors, and people with asthma or heart disease are especially urged to avoid strenuous outdoor activity. Residents are encouraged to monitor symptoms such as coughing or shortness of breath and limit time outside if discomfort arises.
Communities including Portland, Biddeford, Bath, Rockland, and Belfast are likely to be most affected. Outdoor workers should take regular breaks and stay hydrated. Maine DEP recommends checking local air quality conditions via www.maine.gov/dep/air/aqforecast or calling 1-800-223-1196.
The alert remains in effect through 11 p.m. Thursday, and further advisories are possible depending on smoke and weather trends.
