Photo taken on March 17, 2009 shows buildings enveloped in the heavy fog in Taizhou, east China's Zhejiang Province.[Wang Tianrong/Xinhua]
![Photo taken on March 17, 2009 shows buildings enveloped in the heavy fog in Taizhou, east China's Zhejiang Province.[Wang Tianrong/Xinhua]](http://images.china.cn/attachement/jpg/site1007/20090318/000bcdb95f1d0b2a9d5f23.jpg "Photo taken on March 17, 2009 shows buildings enveloped in the heavy fog in Taizhou, east China's Zhejiang Province.[Wang Tianrong/Xinhua]")