In the 70s I live in an apartment adjacent to Interstate H-1 in Honolulu. Same experience. Lanai furniture black. Don't know if tire or exhaust caused, but it w

In the 70s I live in an apartment adjacent to Interstate H-1 in Honolulu. Same experience. Lanai furniture black. Don't know if tire or exhaust caused, but it was black and disturbing and probably in my lungs. https://en.wikipedia.org/wiki/Interstate_H-1 https://en.wikipedia.org/wiki/Interstate_H-1