Act 1242
Anti-idling Legislation1
Carlisle3
China's economic development1
Chinese industrialization1
Clean Air Board1
Collegiate Distance Runners1
Cumberland County2
Diesel motor1
Diesel-Powered Motor Vehicle Idling Act2
Elementary School1
Health1
PA Act 1241
Particulate Air Pollution1
Pennsylvania3
Students1
Trucking Industry1
air quality4
diesel gas emissions1
diesel idling2