西安 空气质量指数: 139 - 轻度污染 - 2013年9月13日, 12:00 Last night's thunderstorm helped clean out the air, so I hope everyone slept well. Today isn't good, but its much better than the last few days of the PM2.5 levels being 200+. Plus the skies are blue 🔗 网页链接
