lol at citation needed, just go out in a village that has more then 10 people running wood/coal stoves and try to breathe...
_Disclosure I also have open fire pit in a garden, and love occasional fire_
_Disclosure I also have open fire pit in a garden, and love occasional fire_
I will say that if folks are having proper bonfires - that absolutely makes a difference. Largely because they are not burning dry wood.