Lu Guang, China, 1961, started with photography at the age of 20 when he was still working in a silk factory. In 1993 he attended the Tsinghua University in Beijing. In 2003 he won first prize at World Press Photo for his story on HIV. He has covered stories on Golddiggers, the SARS epedemic, the Qinghai-Tibet railway and many more. In 2009 he won the W. Eugene Smith grant for his series on pollution in China. The following images are all from Pollution in China.