Hundreds of flights cancelled due to beijing smog

Beijing authorities cancelled hundreds of flights and shut highways as thick smog descended on the Chinese capital on Sunday and Monday, reducing visibility at one of the world's busiest airports.

Air quality in Beijing reached "hazardous" levels on Monday, according to the US embassy, which conducts its own measurements, while China's state Xinhua news agency said pollution was likely to reach "dangerous" levels.

Nearly 400 flights were cancelled on Sunday, China's state television network CCTV reported.

Source: Relax.com