But these emission patterns aren’t specific to California. Jung said tailpipe emissions have declined in all 50 states, a result of policies from the Environmental Protection Agency. But “in all 50 states, brake and tire emissions are not regulated, so we will see the same thing in other states.”
Molden says they found particles as small as six nanometers, which can be inhaled. The tires also emit carcinogens. Other studies. He said “water is likely to be the single biggest destinations of these particles” as materials get washed into drains from the road or seep through soil. The solution isn’t to get rid of tires or electric cars, but perhaps shift the materials of the tires to natural or non-fossil fuel sources, the scientists said. For instance, many tires are made of synthetic rubber derived from crude oil, which includes carcinogens.