Winter and summer PM2.5 chemical compositions in 14 Chinese cities

Cao, J., Shen, Z. X., Chow, J. C., Lee, S. C., Watson, J. G., Tie, X. X., Ho, K. F., Wang, G. H., Han, Y. M. (2012). Winter and summer PM2.5 chemical compositions in 14 Chinese cities, J. Air & Waste Manage. Assoc., 62 (10), 1214-1226