Many garbage cans are abandoned for years in Bulaotun township, Miyun, Beijing. A vast garbage pit, which was left following a waterway dredging project in 2009, has posed threat to the water quality of the nearby river and reservoir in Miyun, Beijing, according to a statement issued by the local environmental protection bureau late Sunday, although monitoring results showed the water quality had not been affected so far. [Photo/Sina.com]