Using a wide range of sources, including in-country surveys, government statistics and World Health Organization data, researchers also found that China had the highest number of smokers in the world in 2012 with 281 million, about one-third of the worlds smoking population
Bibcode:2014JAMA..311..183N
Niu R, Qin Z, Ji F, et al
Stay up to date on this topic Dear Asking For A Friend, I have been a long-time smoker, and I am not really interested in quitting, but Im trying to cut back a bit
A chimney fan can help improve draught and prevent smoke from lingering at low levels, making your wood burner more neighbour-friendly How to Prevent Complaints About Your Wood Burner