The United States Centers for Disease Control and prevention, 22, released a report that ten of the world's most busiest airport in half a total ban, including Beijing Capital International Airport and Shanghai Pudong International Airport.

The study published in the CDC "morbidity and Mortality Weekly" on the show, when extended to the global top 50 busiest airport, a total ban of only 23, the other 27 airports allow smoking in designated smoking area.

This is the first time the United States CDC assessment smoking global airport. The agency quoted the relevant research pointed out that the designated smoking area of smoke spread out, will make people suffer from secondhand smoke nearby.

Secondhand smoke can cause disease hazards including nonsmoking adults die or suffer from stroke and coronary heart disease, lung cancer, and in children may lead to sudden infant death syndrome, acute respiratory infections, asthma exacerbations and lung function decline and other issues.

The latest study found that, in addition to Beijing and Shanghai's two airports, completely non-smoking ten of the world's most busiest airport in Los Angeles International Airport, Chicago O'Hare International Airport and the United States and Britain are Heathrow Airport; designated smoking area is Hong Kong International Airport, Pakistan Richard Gaulle airport, Tokyo International Airport (Haneda Airport), Atlanta Hartsfield Jackson International Airport and Dubai International Airport.

From each area of the airport to see a total ban percentage difference. In the busiest airport in the top 50, Asia accounted for 22, of which only 4 non-smoking, in 4 a total ban Chinese; 9 European airports; there are 14 smoke-free airports in North America 18; only one airport is Sydney International Airport in Australia, but also a total ban on smoking.

The director of the Institute Chinese Tobacco Control Association, Peking University People's Hospital cardiovascular research Hu said, Beijing Shanghai airport do well, thanks to the Beijing Shanghai ban, law enforcement does not stay dead, and the public with strong support. At the same time, Chinese needed by more comprehensive national anti smoking regulations, let all the airports, railways, restaurants, office buildings and other public places have become more safe, clean and healthy non-smoking places.