Two old men play chess over rising flood water despite their homes being partly submerged by water in Pushan town of central China's Henan province June 19, 2009. [Photo/CFP]

In Hengjiang village of Wugang, central China's Hunan province August 18, 2009, two girls hold their medical reports that show they have excessive levels of lead in their blood. Another sister was still under treatment in Changsha, capital of Hunan province.

In August last year, more than 1,350 children in Wenping of Hunan province, the biggest refined-lead producing province in the county, suffered excessive lead poisoning due to the pollution from the Wugang Manganese Smelting Plant. [Photo/CFP]