TY - JOUR A1 - Zhai, S. A1 - An, X. A1 - Zhao, T. A1 - Sun, Z. A1 - Wang, W. A1 - Hou, Q. A1 - Guo, Z. A1 - Wang, C. T1 - Detection of critical PM2.5 emission sources and their contributions to a heavy haze episode in Beijing, China, using an adjoint model JO - Atmos. Chem. Phys. J1 - ACP VL - 18 IS - 9 SP - 6241 EP - 6258 Y1 - 2018/05/03 PB - Copernicus Publications SN - 1680-7324 UR - https://acp.copernicus.org/articles/18/6241/2018/ L1 - https://acp.copernicus.org/articles/18/6241/2018/acp-18-6241-2018.pdf DO - 10.5194/acp-18-6241-2018 ER -