Dominant contribution of combustion-related ammonium during haze pollution in Beijing

Libin Wu, Peng Wang, Qiang Zhang, Hong Ren, Zongbo Shi, Wei Hu, Jing Chen, Qiaorong Xie, Linjie Li, Siyao Yue, Lianfang Wei, Linlin Song, Yonggen Zhang, Zihan Wang, Shuang Chen, Wei Wan, Xiaoman Wang, Yanlin Zhang, Shaofei Kong, Baozhu Ge, Ting Yang, Yunting Fang, Lujie Ren, Junjun Deng, Yele Sun, Zifa Wang, Hongliang Zhang, Jianlin Hu, Cong‐Qiang Liu, Roy M. Harrison, Qi Ying, Pingqing Fu