TY - JOUR A1 - Fu, G. Q. A1 - Xu, W. Y. A1 - Yang, R. F. A1 - Li, J. B. A1 - Zhao, C. S. T1 - The distribution and trends of fog and haze in the North China Plain over the past 30 years JO - Atmos. Chem. Phys. J1 - ACP VL - 14 IS - 21 SP - 11949 EP - 11958 Y1 - 2014/11/13 PB - Copernicus Publications SN - 1680-7324 UR - https://acp.copernicus.org/articles/14/11949/2014/ L1 - https://acp.copernicus.org/articles/14/11949/2014/acp-14-11949-2014.pdf DO - 10.5194/acp-14-11949-2014 ER -