A Day In Beijing Is Like Smoking Only One Sixth Of A Cigarette? It’s Almost…Disappointing! » MyHealt
Dr. St. Cyr, thanks for another interesting read. Down here in Shanghai, I also get this question a lot but never ran the numbers. Although the PM level here is not as bad as Beijing’s, the PM2.5 is on average 2-4x the EPA 24-hr standard (so typically 70-...