living near a busy road or highway? Or, to stay in the same realm as wildfire smoke, living in a place where lots of wood stoves without filter? According to n

living near a busy road or highway? Or, to stay in the same realm as wildfire smoke, living in a place where lots of wood stoves without filter? According to numbers I once saw seen in 'typical' small villages with no heavy industry, pollution from that is the biggest contributer, more than traffic and farming combined. Not 24x7 though.