The deterioration of water quality in China seriously affects the inhabitants. For example, the residents in Chongqing and Guangyuan are suffering from diseases due to water pollution from industrial wastewater (Searchina 2004ab). Another serious problem is unsafe drinking water. According to Chinanet (2005), 300 million people in China cannot drink water which passes the standard for safe drinking, and some people in villages are suffering from diseases due to unsafe drinking water, like in Chongqing and Guangyuan. This problem that people are drinking unsafe water does not occur only in rural areas. Even in urban areas, sources of.
