Many studies have been performed on heavy metal contamination of soil around the world [8-11]. At
the same time, more and more studies have focused on the concentration, distribution and source
identification of heavy metals in roadside dusts [1,12,13]. However, there are little studies about heavy
metals of dusts in urban parks, especially for Beijing. As a quite important place for entertainment and
travelling, parks are associated with people’s daily life and health. Moreover, Beijing, the centre of
politics, economy and culture in China, have great population and heavy burden of human activities. With
the great chance of the dust weather, dust may easily be deposited and accumulated in urban parks, and
have potentially negative influence on people’s health.