摘要
On June 10,the Ministry of Ecology and Environment(MEE)released the results of the second national census on pollution sources.Compared with the fi rst census in 2010,the results of this report are encouraging.Levels of sulfur dioxide,chemical oxygen demand(COD)and nitrogen oxide in the air and water dropped by 72 percent,46 percent and 34 percent respectively compared with 10 years ago.
