People and commuters wear face masks on their way to work, braving heavy air pollution in the Chinese capital city as levels soared to more than 20 times the safety levels resulting in a red alert for all of Beijing. © Olli Geibel

- Image ID: F8E6KX

People and commuters wear face masks on their way to work, braving heavy air pollution in the Chinese capital city as levels soared to more than 20 times the safety levels resulting in a red alert for all of Beijing. © Olli Geibel

Olli Geibel / Alamy Stock Photo

Image ID: F8E6KX

Location: Chaoyangmen Outer Street, Chaowai, Chaoyang, Beijing, China