From AP:
Chinese and Swiss scientists said Friday the Yangtze River is less polluted than expected, but only because the vast amounts of water dilute farm and industrial waste that still pose a serious threat to animals and plants.
Environmentalists warned the findings should not be seen as a clean bill of health for the Yangtze, where water quality has continually deteriorated. Because of its large size, the 3,900-mile-long Yangtze cannot be compared to other rivers, they said.
Around 25 billion tons of waste is poured every year into the Yangtze, the world’s third-largest river, said a joint Chinese-Swiss expedition that analyzed the river’s water quality. [Full Text]
Read also Swiss and Chinese scientists give voice to the Yangtze River by Swiss Agency for Development and Cooperation.