Concentrations and analysis of health risks of ambient air metallic elements at Longjing site in central Taiwan - Guor-Cheng Fang; Yu-Cheng Chen; Chaur-Tsuen Lo; Meng-Hsien Cho; Yuan-Jie Zhuang; Kai-Hsiang Tsai; Chao-Yang Huang; You-Fu Xiao (Environmental Geochemistry and Health, 2018)