This is becoming a serious problem.  I remember when I tried to play 90 min of soccer outside of Beijing and by the time I got home I would spend the next 2 hours wheezing on my couch. It seems things have gotten even worse since then. To all my friends still in Beijing. Take care, and definitely go buy the mask now!

Latest reports from @BeijingAir: [get_latest_tweets username=’BeijingAir’]