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; Wan Wei; 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