Chongming County (崇明县, pinyin: Chóngmíng Xiàn) is the only county under the jurisdication of Shanghai, China. The county is located on Chongming Island (崇明岛, pinyin: Chóngmíng Dǎo), the second largest island of mainland China, after Hainan. It was the most urban area of Shanghai at one time, but now with the construction the trans-Yangtze tunnel, many people are rushing to the island to look for gold. It is also a major relocation centre for migrants from Three Gorges Dam area. Chongming has an area of 1041.38 km² and population of 694 600 as of 2001.
Chong Ming National Forest Park is also located there.
Zhang said Chongming already had a national wetland conservation zone in the east, about 300 square kilometers, and is planning to build a new wetlands park in the west, about 3 square kilometers.
According to Shen Junzhou, head of Chongming's Environmental Protection Bureau, Chongming will be supervised by a series of environment policies to prevent the island from being polluted.
He said that by 2010 when a tunnel-and-bridge connection is built between Pudong and Chongming, vehicles that enter the island must comply with emission-level rules.
Chongming, a 750-square-mile island at the mouth of the Yangtze River, is the world’s largest alluvial island.
Prior to the competition, a new bridge/tunnel connecting Chongming to Shanghai was being planned, placing the Island directly in the path of the seemingly unstoppable Shanghai sprawl that had, in less than twenty years, witnessed the construction of three times the number of high-rises that exist on the entire western coast of North America.
Chongming, in comparison, was decades behind Shanghai in development, with a per capita a mere one-fifth of that in the central city.