Characterization of submicron particles PM1 collected at large city and suburban, and its magnetic properties

为了研究PM1的化学成分，空气中的颗粒物收集使用安德森采样器在四个地点：新宿，甲藏，山顶。富士和上海。对PM1样品中水溶性无机离子和金属元素进行了测定，并提出了一种基于磁性差异的颗粒物分类方法。结果表明，对于PM1样品，磁组分占总浓度的比例在上海和喀左之间存在差异。

In order to investigate chemical components of PM1, airborne particles were collected by use of Andersen samplers at four sites : Shinjuku, Kazo, the top of Mt. Fuji and Shanghai. Water soluble inorganic ions and metal elements in PM1 samples were measured.New classification method of particulate matters based on the difference of magnetic properties was also developed. As a result of applying that for PM1 samples, we found that the ratios of magnetic fraction to total concentration of some elements were different between Kazo and Shanghai.