Source: South China Morning PostA sandstorm that hit Beijing on Sunday morning pushed air pollution levels off the charts, turned the sky yellow and reduced the sun to a blue spot.The storm was the second to hit the Chinese capital in less than two weeks and came after the Beijing Meteorological Bureau issued a yellow warning (the third highest) on Saturday. It also warned of high winds and advised citizens to stay at home if possible.As of noon on Sunday, the city’s air quality index had stopped rising, after hitting the…Read More