A member asked:

Why is it worse running behind cars instead of beside? i breathed in heavy fumes but was about 6-12ft away. is it true that running in polluted traffic equivalent to smoking cigarettes?

A doctor has provided 1 answer

EXHAUST FUMES: Car exhaust fumes contain certain poisonous chemicals, including carbon monoxide, sulfur dioxide, nitrogen oxides, formaldehyde, benzene and soot, all of which can be detrimental to the human body if consistently inhaled in large quantities.

Answered 1/17/2021

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