Firefighters wearing gas masks move a 500-kg tank of chlorine after it leaked at a waste materials market in Wuhan, Central China's Hubei Province,October 30, 2005. The tank had been at the market for years before some attempted to open it at the weekend. Nine elderly people were rendered unconscious by the leak and were sent to hospital immediately. About 30 households were evacuated following the accident. [newsphoto]

Firefighters wearing move a 500-kg tank of chlorine after it leaked at a waste materials market in Wuhan, Central China's Hubei Province,October 30, 2005. [newsphoto]

Firefighters dump the tank of chlorine into a nearby limestone pit. [newsphoto]

Three elder women feel vomiting after inhaling the poisonous chlorine at the leak site. [newsphoto]

Crops near the chlorine leak site withered. [newsphoto]