Nanjing races to clean air before Youth Games

Nanjing is going all-out to guarantee the best air quality possible in the city as it prepares to host the 2014 Summer Youth Olympic Games in August.

"We shut down polluting enterprises this year, closing about 30 factories since March," Nanjing Mayor Miu Ruilin said.

The capital of Jiangsu province is also restructuring its industrial focus, Miu said.