A worker walks past an environment friendly public toilet at 2010 World Expo Site in east China's Shanghai, Feb. 22, 2010. More than thirty pre-feb public toilets serving about 8,000 visitors at a time are installed for the 2010 Shanghai World Expo. The toilets, using water supplied partly by rainwater collected in the Sunshine Valley, are adjustable acording to the ratio of service area for female and male users. [Xinhua] |