TY - Front. Environ. Sci. Eng. A1 - Qian ZHANG,Fengkui DUAN,Kebin HE,Yongliang MA,Haiyan LI,Takashi KIMOTO,Aihua ZHENG T1 - Organic nitrogen in PM2.5 in Beijing Y1 - 2015-11-23 JF - Frontiers of Environmental Science & Engineering JO - Front. Environ. Sci. Eng. SP - 1004 EP - 1014 VL - 9 IS - 6 UR - https://journal.hep.com.cn/fese N1 - 10.1007/s11783-015-0799-5 ER -