Marathon world record holder Haile Gebrselassie, that guy on there right said on Monday he would not compete in the Olympic marathon because of fears Beijing's air pollution would damage his health. The Ethiopian runner, who suffers from asthma, said he would still compete in the 10,000 meters at the August Games. "The pollution in China is a threat to my health and it would be difficult for me to run 42-km in my current condition. Bejing is a serious mess for athletes - even for just walking around - athletes will be wearing that mask on the right - that you can actually buy, it's actually designed for use in Beijing and by athletes in their events - the Honeycomb Activated Carbon Filter (ACF) Pollution Mask - what that woman on the right is wearing. If you are exposed to pollutants and run?....consider that mask on the right, just click the link and check it out.