Report on the quality of air in 47 major Chinese cities (12:00 Jan. 12, 2012 to 12:00 Jan. 13, 2013, Beijing Time), released by the China Environmental Monitoring Center:
City Major Pollutant Air Quality Level
Beijing particulate matter V
Tianjin particulate matter III2
Shijiazhuang particulate matter V
Qinhuangdao particulate matter IV2
Taiyuan particulate matter III
Hohhot particulate matter III
Shenyang particulate matter IV2
Dalian particulate matter III1
Changchun particulate matter V
Harbin particulate matter III2
Shanghai particulate matter II
Nanjing particulate matter IV1
Suzhou particulate matter III1
Nantong particulate matter III1
Lianyungang particulate matter II
Hangzhou particulate matter III1
Ningbo particulate matter III1
Wenzhou particulate matter II
Hefei particulate matter III2
Fuzhou particulate matter II
Xiamen particulate matter II
Nanchang particulate matter III1
Jinan particulate matter III2
Qingdao particulate matter III1
Yantai particulate matter III1
Zhengzhou particulate matter IV1
Wuhan particulate matter III2
Changsha particulate matter III1
Guangzhou particulate matter II
Shenzhen particulate matter II
Zhuhai particulate matter II
Shantou particulate matter II
Zhanjiang particulate matter II
Nanning particulate matter II
Guilin particulate matter II
Beihai particulate matter II
Haikou particulate matter II
Chongqing particulate matter III1
Chengdu particulate matter IV1
Guiyang particulate matter III2
Kunming particulate matter II
Lhasa particulate matter II
Xi'an particulate matter IV1
Lanzhou particulate matter II
Xining particulate matter II
Yinchuan particulate matter III2
Urumqi particulate matter III1
The center classifies air quality in China's urban areas into five levels: level I or excellent (pollution reading: not exceeding 50), level II or fairly good (pollution reading: 51 to 100), level III or slightly polluted (pollution reading: 101 to 200), level IV or poor (pollution reading: 201 to 300), and level V or hazardous (pollution reading: over 301).
The 47 cities monitored by the center include the four municipalities of Beijing, Tianjin, Shanghai and Chongqing, provincial (or autonomous regional) capitals, and major cities in economically developed coastal areas, and tourist attractions. Endi
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