中文摘要：

国外学者对城市街道灰尘中重金属的积累分布、粒径效应及其生物有效性等已展开了一系列有效研究，而中国城市街道灰尘重金属污染相关研究起步较晚，研究内容主要包括重金属污染特征与空间分异。综述了城市街道灰尘重金属污染现状、粒径效应、来源以及重金属含量影响因素等方面的研究进展，并从对今后的城市街道灰尘重金属污染研究方向进行了展望。

英文摘要：

Foreign scholar has done many researches on urban street dust,which including its heavy mental accumulation and distribution, size effect and bioavailability. The researches of heavy mental pollution in urban street dust started relative late in our country, which were focus on characteristic of heavy mental pollution and spatial heterogeneity. Based on the comprehensive literature review, this paper presented the recent research of heavy mental pollution in urban street dust, including the heavy metal pollution situation, size effect, and pollutant source. The factors affecting the heavy metal content in street dust,such as vehicle exhausts, industrial discharges and urban construction, were also introduced. Finally, several directions of future research on heavy mental pollution in urban street dust were forecasts.