This falls under the umbrella of "particulate matter" and is studied quite a bit. I'm not that familiar with particulates from road dust (specifically from tire

This falls under the umbrella of "particulate matter" and is studied quite a bit. I'm not that familiar with particulates from road dust (specifically from tire erosion), but particulate matter is frequently studied (though not as much for endocrine disruption, at least not that I am familiar with): https://en.m.wikipedia.org/wiki/Particulates https://en.m.wikipedia.org/wiki/Particulates