A woman covers her face with a scarf to protect her from floating dust in Yinchuan, capital of northwest China’s Ningxia Hui Autonomous Region, May 13, 2013. Floating dust hit Yinchuan on Monday.
The city landscape is seen enveloped in dust in Yinchuan, capital of northwest China’s Ningxia Hui Autonomous Region, May 13, 2013. <Xinhua/Peng Zhaozhi>
