Characterization of Elemental Composition and Valence State of Cyclone-collected Aerosol Particles Using EDXRF and XAFS at Three Sites in Japan oleh Weidong Jing, Katsutomo Saito, Takuma Okamoto, Hibiki Saito, Kazuki Sugimoto, Chiharu Nishita-Hara, Keiichiro Hara, Masahiko Hayashi, Shuichi Hasegawa, Tomoaki Okuda