Abstract: Urban road dust has received widespread attention due to its environmental and health risks. In this study, a total of 38 campus road dust samples were collected from kindergartens, elementary schools, and colleges in Beijing. By measuring the contents of Cd, Co, Cr, Cu, Ni, Pb, Ti, V, and Zn, we analyzed the contamination characteristics, sources, and health risks. The results showed that heavy metals in Beijing campus road dust displayed heavy pollution. Among them, Cd showed the highest level of pollution, followed by Zn, Cu, Pb, Co, Cr, Ni, V and Ti. The sources of heavy metals in campus road dust mainly included industrial sources (33.33%), traffic sources (45.93%), and natural sources (20.74%). Uncertainty assessment of health risk was carried out using Monte Carlo simulation in conjunction with the health risk model of the U.S. Environmental Protection Agency. The results showed that heavy metals in road dust had significant carcinogenic risk, and that the health risk of children was higher than that of adults in all cases. Cd was the preferred pollutant to be controlled in campus road dust. Traffic sources were the preferred source of risk to be controlled.

Key words: campus, road dust, pollution characterization, source analysis, health risk