中文摘要：

室内灰尘是一种复杂、多相的粒子混合物,来源复杂,是室内环境中主要的污染物之一。室内灰尘中重金属是室内环境中主要的污染物之一,它会通过皮肤接触、呼吸吸入以及手口摄入等途径进入人体,对人体健康产生威胁。目前的研究主要集中在空间尺度上室内灰尘重金属的污染特征及其健康风险,在时间尺度上的分析较缺乏,尤其是不同季节;对影响室内灰尘重金属污染的因素分析多集中为室内外环境,如交通活动、油漆等,对人们的生活习惯及行为模式等分析较少。因此,在今后的研究中应加强室内灰尘重金属污染的时间尺度的变化及其来源解析,构建关于时间-活动模式的健康风险评估模型,提高污染评价的准确性。

英文摘要：

Indoor dust is a heterogeneous assortment of particle derivative. Sources of heavy metals in indoor dust are complicated. Heavy metal is one of pollutants in the indoor environment. The heavy metal is a threat to human health by the ways of respiratory inhalation, hand-mouth intake and dermal contact. The past research activities have been mainly focused on heavy metal pollution characteristics in indoor dust in a spatial scale and health risks. However, analysis on a temporal scale is lacking, especially in different seasons. Analysis on the factors affecting pollution of heavy metals in indoor dust has been more focused on outdoor and indoor environments such as transportation activities and paint, hut few analyses are on exposure time, living habits and activity patterns. Therefore, in future research, the core should strengthen to study the pollution change of heavy metals in indoor dust over time, and improve the sources analysis of heavy metals in indoor dust, construct the model of health risk assessment of time-activity pattern, and improve the accuracy of pollution evaluation.