London's Subway Commuters Breathe More Pollution Than Drivers

If you find yourself wheezing as you wander down a fume-filled London street, just remember that things could be worse. You could be on the city’s subway system.

According to a new study from the University of Surrey, London’s Tube riders experience worse air than those who travel by car. In the worst cases, particulate levels in the subway system can be as much as eight times higher than those experienced by drivers. The pollution caused by motor vehicles may be a menace to health, but when it comes to exposure and potential health effects, it seems you’re worse off underground.