TY - JOUR A1 - Han, B. A1 - Zhang, R. A1 - Yang, W. A1 - Bai, Z. A1 - Ma, Z. A1 - Zhang, W. T1 - Heavy air pollution episodes in Beijing during January 2013: inorganic ion chemistry and source analysis using Highly Time-Resolved Measurements in an urban site JO - Atmos. Chem. Phys. Discuss. J1 - ACPD VL - 2015 SP - 11111 EP - 11141 Y1 - 2015/04/15 PB - Copernicus Publications SN - 1680-7375 UR - https://acp.copernicus.org/preprints/15/11111/2015/ L1 - https://acp.copernicus.org/preprints/15/11111/2015/acpd-15-11111-2015.pdf DO - 10.5194/acpd-15-11111-2015 ER -