Atmospheric Chemistry and Physics, Vol 19, Pp 7519-7546 (2019) Shi, Z, Vu, T, Kotthaus, S, Harrison, R M, Grimmond, S, Yue, S, Zhu, T, Lee, J, Han, Y, Demuzere, M, Dunmore, R E, Ren, L, Liu, D, Wang, Y, Wild, O, Allan, J, Acton, W J, Barlow, J, Barratt, B, Beddows, D, Bloss, W J, Calzolai, G, Carruthers, D, Carslaw, D C, Chan, Q, Chatzidiakou, L, Chen, Y, Crilley, L, Coe, H, Dai, T, Doherty, R, Duan, F, Fu, P, Ge, B, Ge, M, Guan, D, Hamilton, J F, He, K, Heal, M, Heard, D, Hewitt, C N, Hollaway, M, Hu, M, Ji, D, Jiang, X, Jones, R, Kalberer, M, Miller, M R, Palmer, P I & Stevenson, D 2019, ' Introduction to the special issue "In-depth study of air pollution sources and processes within Beijing and its surrounding region (APHH-Beijing)" ', Atmospheric Chemistry and Physics, vol. 19, no. 11, pp. 7519-7546 . https://doi.org/10.5194/acp-19-7519-2019 Shi, Z, Vu, T, Kotthaus, S, Harrison, R M, Grimmond, S, Yue, S, Zhu, T, Lee, J, Han, Y, Demuzere, M, Dunmore, R E, Ren, L, Liu, D, Wang, Y, Wild, O, Allan, J, Joe Acton, W, Barlow, J, Barratt, B, Beddows, D, Bloss, W J, Calzolai, G, Carruthers, D, Carslaw, D C, Chan, Q, Chatzidiakou, L, Chen, Y, Crilley, L, Coe, H, Dai, T, Doherty, R, Duan, F, Fu, P, Ge, B, Ge, M, Guan, D, Hamilton, J F, He, K, Heal, M, Heard, D, Nicholas Hewitt, C, Hollaway, M, Hu, M, Ji, D, Jiang, X, Jones, R, Kalberer, M, Kelly, F J, Kramer, L, Langford, B, Lin, C, Lewis, A C, Li, J, Li, W, Liu, H, Liu, J, Loh, M, Lu, K, Lucarelli, F, Mann, G, McFiggans, G, Miller, M R, Mills, G, Monk, P, Nemitz, E, O'Connor, F, Ouyang, B, Palmer, P I, Percival, C, Popoola, O, Reeves, C, Rickard, A R, Shao, L, Shi, G, Spracklen, D, Stevenson, D, Sun, Y, Sun, Z, Tao, S, Tong, S, Wang, Q, Wang, W, Wang, X, Wang, X, Wang, Z, Wei, L, Whalley, L, Wu, X, Wu, Z, Xie, P, Yang, F, Zhang, Q, Zhang, Y, Zhang, Y & Zheng, M 2019, ' Introduction to the special issue "in-depth study of air pollution sources and processes within Beijing and its surrounding region (APHH-Beijing)" ', Atmospheric Chemistry and Physics, vol. 19, no. 11, pp. 7519-7546 . https://doi.org/10.5194/acp-19-7519-2019