In this paper, the article has investigated the existing shrubs species on40Main Street of9City in Changchun City.There are8shrubs in40Main Street. According to its using frequency, they are Ligustrum obtusifolium、Acer ginnala、Syringa microphylla、Prunus triloba、Spiraea thunbergii Sieb.ex Blume、Ulmus pumila cv.jinye、Spiraea xbumaldaGold Mound、Rosa xanthina。 Selected the3shrub species and3streets with highest used frequency, studies the dust The streets are the South Lake Road(along the Xian Tai Street to the...