The Conversation reported on a recent study that revealed air quality in Philadelphia's SEPTA subway system is far worse than the air on the city streets just above them. Researchers from ...

Accessible via 15th & Market Sts, City Hall Station and Walnut-Locust Station subway stations. The busiest part of Philadelphia is downtown or Center City, where the old and the modern come together.

More information: Anjum Shahina Karim et al, Assessment of air quality in the Philadelphia, Pennsylvania subway, Journal of Exposure Science & Environmental Epidemiology (2024). DOI: 10.1038 ...