epa09075484 A view shows the skyline affected by a sandstorm, in Beijing, China, 15 March 2021. According to the National Meteorological Center, floating sand and dust are expected to sweep of China's Xinjiang, Inner Mongolia, Heilongjiang, Jilin, Liaoning, Gansu, Ningxia, Shaanxi, Shanxi, Hebei, Beijing and Tianjin. EPA-EFE/WU HONG

epa09075507 People ride bicycles in the street as the area is hit by sandstorm, in Beijing, China, 15 March 2021. According to the National Meteorological Center, floating sand and dust are expected to sweep of China's Xinjiang, Inner Mongolia, Heilongjiang, Jilin, Liaoning, Gansu, Ningxia, Shaanxi, Shanxi, Hebei, Beijing and Tianjin. EPA-EFE/WU HONG

epaselect epa09075487 A man wears a mask while the Forbidden City, as seen from a viewing deck of Jingshan Park, is shrouded in dust as the city is hit by sandstorm, in Beijing, China, 15 March 2021. According to the National Meteorological Center, floating sand and dust are expected to sweep of China's Xinjiang, Inner Mongolia, Heilongjiang, Jilin, Liaoning, Gansu, Ningxia, Shaanxi, Shanxi, Hebei, Beijing and Tianjin. EPA-EFE/WU HONG