Yinchuan Tianjin Beijing Lanzhou Zhengzhou Chengdu Datong Xi'an Urumqi Dalian Fushun Anshan Shenyang Benxi Nanjing Hefei Pudong

Home , Anshan, Benxi, Dalian, Fushun, Tianjin, Yinchuan

1.8 1.8 1.8 1.6 Urumqi 1.6 Lanzhou 1.6 Yinchuan 1.4 1.4 1.4 1.2 1.2 1.2 1.0 1.0 1.0 440 nm 440

440 nm 440 .8 .8 440 nm 440 .8 .6 .6

AOD .6 AOD AOD .4 .4 .4 .2 .2 .2 0.0 0.0 0.0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

1.8 1.8 1.8 1.6 Xi'an 1.6 Beijing 1.6 Tianjin 1.4 1.4 1.4 1.2 1.2 1.2 1.0 1.0 1.0 440 nm 440 440 nm 440 .8 .8 nm 440 .8 .6 .6 .6 AOD AOD AOD .4 .4 .4 .2 .2 .2 0.0 0.0 0.0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

1.8 1.8 1.8 1.6 1.6 1.6 Dalian Datong Zhengzhou 1.4 1.4 1.4 1.2 1.2 1.2 1.0 1.0 1.0 440 nm 440 .8 440 nm 440 440 nm 440 .8 .8 .6 .6 .6 AOD AOD AOD .4 .4 .4 .2 .2 .2 0.0 0.0 0.0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

1.8 1.8 1.8 1.6 Shenyang 1.6 Anshan 1.6 Benxi 1.4 1.4 1.4 1.2 1.2 1.2 1.0 1.0 1.0 440 nm 440

.8 nm 440 440 nm 440 .8 .8 .6 .6 .6 AOD AOD AOD .4 .4 .4 .2 .2 .2 0.0 0.0 0.0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

1.8 1.8 1.8 1.6 1.6 1.6 Hefei Nanjing Fushun 1.4 1.4 1.4 1.2 1.2 1.2 1.0 1.0 1.0

440 nm 440 .8 440 nm 440 .8 .8 nm 440 .6 .6

.6 AOD AOD AOD .4 .4 .4 .2 .2 .2 0.0 0.0 0.0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

1.8 1.8 1.8 1.6 Pudong 1.6 Hangzhou 1.6 Panyu 1.4 1.4 1.4 1.2 1.2 1.2 1.0 1.0 1.0 440 nm 440 440 nm 440 .8 .8 nm 440 .8 .6 .6 .6 AOD AOD AOD .4 .4 .4 .2 .2 .2 0.0 0.0 0.0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

1.8 1.8 1.8 1.6 Nanning 1.6 Chengdu 1.6 1.4 1.4 1.4 Kunming 1.2 1.2 1.2 1.0 1.0 1.0

440 nm 440 .8 440 nm 440 .8

.8 nm 440 .6 .6 .6 AOD AOD .4 .4 AOD .4 .2 .2 .2 0.0 0.0 0.0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec