Study finds automobile tires are a potential source of carcinogenic dibenzopyrenes to the environment
Green Car Congress
MARCH 10, 2012
60% rubber polymers; 20?35% Any new tire or tire tread used for retreading manufactured after first January 2010 may not contain any extender oil with more than 1 mg kg benzo[a]pyrene (B[a]P) or more than 10 mg kg ?1 Data available of dibenzopyrenes in other urban emission sources are diesel and gasoline particulate emissions.
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