Metra riders subjected to high amounts of diesel soot
http://www.chicagotribune.com/health/ct-met-dirty-diesel-20101105,0,5142951,full.story
"Tribune testing found the air trapped inside the stainless-steel cars contains levels of diesel soot up to 72 times higher than on the streets outside."
http://www.chicagotribune.com/health/ct-met-dirty-diesel-20101105,0,5142951,full.story
"Tribune testing found the air trapped inside the stainless-steel cars contains levels of diesel soot up to 72 times higher than on the streets outside."
