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Air pollution inside Philly’s subway is much worse than on the streets

  • Written by Kabindra Shakya, Associate Professor of Environmental Science, Villanova University
Air pollution inside Philly’s subway is much worse than on the streetsAge of subway, frequency of trains and poor ventilation contribute to bad air quality. Bastiaan Slabbers/NurPhoto via Getty Images

The air quality in the City Hall subway station in downtown Philadelphia is much worse than on the sidewalks directly above the station. That is a key finding of our new study published in the Journal of Exposure...

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