•The overall urban air quality of China was good, 95.7% cities of above county-level met Grade II national air quality standard;　 

•In the 11 municipalities, 85% cities at county level or above met Grade I or II standard;　 

•The primary pollutant is still PM10 ；　 

•acid rain pollution was still relatively heavy. 

•The average value of Regional Environmental Noise in the 11 municipalities is 55.6 dB and Urban Road Traffic Noise is 68.7 dB;　 

•Life noise source and traffic noise source is the main noise source of the urban acoustic environment.