External interference from ambient air pollution on using hair metal(loid)s for biomarker-based exposure assessment - Ren, Mengyuan; Yan, Lailai; Pang, Yiming; Jia, Xiaoqian; Jing Huang; Shen, Guofeng; Cheng, Hefa; Wang, Xilong; Pan, Bo; Li, Zhiwen; Bin Wang (Environment international, 2020)