State Key Laboratory of Environmental Criteria and Risk Assessment;
Chinese Research Academy of Environmental Sciences;
Beijing 100012;
China;
Resources and Environment Innovation Research Institute;
School of Municipal and Environmental Engineering;
Shandong Jianzhu University;
Jinan 250101;
China;
Faculty of Environmental Engineering;
The University of Kitakyushu;
1-1 Hibikino;
Wakamatsu;
Kitakyushu;
Fukuoka 808-0135;
Japan;
School of Instrumentation Science and Opto-electronics Engineering;
Beihang University;
Beijing 100191;
China;
Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention(LAP3);
Department of Environmental Science and Engineering;
Fudan University;
Shanghai 200438;
China;
Size distribution; Secondary inorganic ions; Source analysis; Secondary formation; Sensitivity test;