The Pennsylvania Department of Environmental Protection has issued a Code PURPLE Air Quality Alert for all of Central Pennsylvania for today, Friday July 17th. Wildfire smoke from northern Minnesota and south central Canada will continue to result in very unhealthy air quality. Everyone should limit outdoor strenuous activity and exercise due to poor air quality. Sensitive groups should avoid all outdoor activity. Sensitive groups include children, the elderly, and people suffering from heart disease, asthma, or other lung diseases. For more information on ground-level ozone and fine particles, visit www.airnow.gov, and www.aqpartners.state.pa.us.