“Chinese Dam Projects Criticized for Their Human Costs”. New York Times. November 19, 2007 – “Water quality in the main reservoir remained stable, but Mr. Wang said pollution was worsening in tributaries because of high levels of nitrates and phosphates that had already endangered drinking water in some areas. He said an algal bloom from too many nutrients earlier this year on a tributary had contaminated drinking water for 50,000 people in Fengdu County.”
Lin Yang. “China’s Three Gorges Dam Under Fire”. Time Magazine. Oct. 12, 2007 – “scientists say things are getting worse. The water quality of the Yangtze’s tributaries is deteriorating rapidly, as the dammed river is less able to disperse pollutants effectively. The incidence of algae blooms has risen steadily since the reservoir was completed in 2006.”