Size-resolved environmentally persistent free radicals in urban road dust and association with transition metals. - Xiao, Kai; Wang, Zedong; Zhou, Yousong; Fu, Donglei; Zhang, Yongqiang; Luo, Zhihan; Lin, Yichun; Wang, Qingyue; Pei, Juan; Shen, Guofeng (Environmental Geochemistry & Health, 2023)