@Article{acp-18-8849-2018,
AUTHOR = {Liu, Z. and Gao, W. and Yu, Y. and Hu, B. and Xin, J. and Sun, Y. and Wang, L. and Wang, G. and Bi, X. and Zhang, G. and Xu, H. and Cong, Z. and He, J. and Xu, J. and Wang, Y.},
TITLE = {Characteristics of PM$_{2.5}$ mass concentrations and chemical species in
urban and background areas of China: emerging results from the CARE-China
network},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {18},
YEAR = {2018},
NUMBER = {12},
PAGES = {8849--8871},
URL = {https://acp.copernicus.org/articles/18/8849/2018/},
DOI = {10.5194/acp-18-8849-2018}
}