Pollution characteristics of environmental persistent free radicals (EPFRs) and their contribution to oxidation potential in road dust in a large city in northwest China

• Hao LiShaanxi University of Science and Technology
• Qingcai ChenShaanxi University of Science and Technology
• Chao WangChina Railway Construction Corporation (China)
• Ruihe WangChina Railway Construction Corporation (China)
• Tong ShaShaanxi University of Science and Technology
• Xiqi YangShaanxi University of Science and Technology
• Dyussenova AinurShaanxi University of Science and Technology