Perhaps many people who live and like to do some sort of exercise in the metropolises such as New York, London and Tokyo, should pay their attention to the latest find from a health expert from the UGG Ashur boot branch in Madrid.

The health expert from the UGG Ashur boot store in the capital of Spain, Duff said: "After analyze the heath conditions of the members who come from the cheap uggs boots expedition team, members who tend to exercise in big cities have the high level of black carbon in their bleed." The black carbon comes from the vehicle exhaust and industrial waste gas.

Duff also wanted members from the expedition team of UGG Ashur boot and many other people to pay their serious attentions into this mater. "Exposing to the environment filled with the high level of black carbon too much, could make people suffer a lot of health problems such as heart disease and asthma." Duff also said she had forwarded her proposal to the expedition team of cheap uggs boots two months ago.