Smog ‘doubles Chiang Mai lung cancer threat’
February 18th, 2009
Due to constant exposure to seasonal smog, residents in Chiang Mai face twice the risk of lung cancer as people elsewhere, a Chiang Mai University medical lecturer said yesterday.
The annual risk rate for lung cancer among the population in the North is now 40 per 100,000 people – compared to 20 per 100,000 people in other regions, said Assoc Professor Phongthep Wiwatthanadej.