That carbon is not a green house gas so its okay :P
But seroulsly, a review found on pubmed¹ made me realise that brakes and tires emissions are an understudied public health threat. Breaks emissions accounts for 16% to 55% of the PM₁₀ emitted by an ICE car and those particles are an healthy mix of iron, copper, barium, lead, inorganic carbon (probably as soot and graphite, I would be terribly surprised if it was as diamonds and graphene) and various unlisted and unstudied organic compounds!
But seroulsly, a review found on pubmed¹ made me realise that brakes and tires emissions are an understudied public health threat. Breaks emissions accounts for 16% to 55% of the PM₁₀ emitted by an ICE car and those particles are an healthy mix of iron, copper, barium, lead, inorganic carbon (probably as soot and graphite, I would be terribly surprised if it was as diamonds and graphene) and various unlisted and unstudied organic compounds!
1- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4315878/#Sec8ti...
P.s. I tried to link directly to the conclusion but the pubmed reader sometimes show a seemingly random page... so the correct page is 40