Armed police members pour neutralizers to a water tank at a hydropower station in Liucheng County of Liuzhou City, south China's Guangxi Zhuang Autonomous Region, Jan. 29, 2012, aiming at dissolving the contamination in the Longjiang River, a tributary upstream of the Liujiang River at the region. The cadmium pollution in the river following a spill from an industrial plant has been controlled and no new leakage has been found, local environmental authorities said Sunday. The cadmium pollutants, have now reached the Luodong hydropower station on the Longjiang River, and still pose a threat to water safety in Liujiang, according to experts. [Xinhua]