Ground-level ozone concentrations are expected to reach the “Unhealthy for Sensitive Groups” level according to the Maine Department of Environmental Protection.
Ozone is now expected to reach the “Unhealthy for Sensitive Groups” category this afternoon in the Southwest Coastal region which includes: the width of 1 to 2 towns wide along the coast from Kittery through Reid State Park. At the same time, particle pollution levels are continuing to run in the Moderate range due to wildfire smoke lingering in New England.