Tuesday, April 25, 2017

Air Pollution in Subway Systems May Be Much Worse Than We Realized

As anyone who has ridden the subway knows, the air down there is unpleasant. New research done in Canada shows that air pollution levels in Toronto’s subway system are ten times greater than those above ground. It’s a troubling realization for subway-goers, but there are ways to keep these underground systems clean.


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Air Pollution in Subway Systems May Be Much Worse Than We Realized

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