A rubbish collecter cleans off waste of firecrackers on a plaza in Hangzhou, capital of east China's Zhejiang Province, Feb. 9, 2011. Lots of local companies rushed on Wednesday to set off firecrackers before they started the first workday after the long-term holiday of Chinese Spring Festival, which is traditionally regarded as a propitious omen for business in the new year. (Xinhua/Wu Huang)