People with face masks wait at a pedestrian crossing 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: F8E54J

People with face masks wait at a pedestrian crossing 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: F8E54J

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