Fuel sources to carbonaceous aerosols at the eastern fringe of the Tibetan Plateau, China: Δ14C and δ13C evidences

Chaoliu Li1, Chao Zhang2, Yan Fangping3, Kang Shichang4, Yixi Liu1, Yongheng Gao5, Chen Pengfei3, Yinbo Xu6 and Cenlin He7, (1)Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China, (2)University of Chinese Academy of Sciences, Beijing, China, (3)Northwest Institute of Eco-Environment and Resources, CAS Chinese Academy of Sciences, Lanzhou, China, (4)Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, State Key Laboratory of Cryospheric Science, Lanzhou, China, (5)Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China, (6)Southwest University, Chongqing, China, (7)National Center for Atmospheric Research, Research Applications Laboratory, Boulder, United States