Olympics: Pollution over Beijing? Don't worry, it's only mist, say officials

Olympics: Pollution over Beijing? Don’t worry, it’s only mist, say officials

Official readings collated by Beijing’s municipal environmental protection bureau yesterday gave an air pollution index (API) of 91 for Beijing as a whole, and 87 at the Olympic stadium. The World Health Organisation regards an API of more than 50 as high, and a reading of 100 or more is considered unsafe.