Households are being warned about the dangers of wood-burning stoves, including modern eco-design models, as a new study by the University of Surrey's Global Center for Clean Air Research (GCARE) has found that the use of woodstoves results in short-term exposures to high concentrations of toxic pollutants.
i mean it clearly isn’t a very big issue since people have lived with it for ages and been fine, AFAIK the actual significant problem is when you have a lot of people burning wood near each other, as that makes the local air quality worse and you can’t really avoid it in any way.