My point is that it isn’t a few wood burners that create a problem so much as the millions of cars and power stations. Getting rid of them would clean up the air but that’s not popular is it.
I can’t provide a reference for this as it’s from memory, from an exhibit in Te Papa, the National Museum in NZ. It’s a fantastic museum and well worth a trip. Anyway, an exhibit on air quality and what NZ is doing about it.
They monitored the airborne pollutants in lots of places and found that in winter, upwards of 75% of some size of particulate (PM10? Total Suspended Particulates? not sure) in lots of in major cities (in particular, ChCh) were of the type produced by domestic stoves.
Not industry, not cars, but 75% of that smog was from wood burning stoves.