美国加州大学河滨分校化学系;
河滨市92521;
墨西哥国立自治大学物理科学研究所;
莫雷洛斯62251;
Department of Physics;
Anhui Normal Uni-versity;
Wuhu 241000;
China;
Chinese Physics B;
Institute of Physics;
Chinese Academy of Sciences;
Beijing 100190;
China;
Air Pollution Research Center;
University of California;
Riverside;
CA 92521;
USA;