Outdoor events are being canceled and officials are urging people to limit outdoor activities Friday as wildfire smoke lingers over Western Pennsylvania.
The Pennsylvania Department of Environmental Protection declared a statewide Code Purple Air Quality Alert for particulate matter, or PM2.5, for Friday.
Conditions Thursday were so hazy that Downtown Pittsburgh’s skyline and iconic Point State Park were hardly visible from overlooks that typically over picturesque views. The Allegheny County Health Department upgraded air quality warnings to the maroon level — the highest level of air quality alert…