Tires today contain a large amount of plastics. So what you are breathing while walking next to a road with a bunch of Teslas driving down it is basically a cloud of microplastics.
It's worse than regular microplastics. It's 6PPD which is N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine, a lethal non-plastic amine.
Moreover, this chemical has been accumulating in the environment, and making its way into food, so we're not just breathing it, but eating it too. Refer to DOI 10.3389/fenvs.2024.1384506
