No-drive experiment curbs air pollution in Beijing

From San Francisco, at a meeting of the American Geophysical Union

Traffic-control measures can significantly reduce urban air pollution, a field study done in Beijing this summer indicates.

Beijing, a city of 15 million people and 3 million cars, has notoriously bad air, and it’s getting worse, says Tong Zhu, an atmospheric chemist at Peking University in Beijing.