Development of In-situ Measuring Technology for Chemical Components of Nano-size Ambient Aerosol Particles using DMA

1）环境粒子物质的纳米尺寸分类的设计和开发·DMA其中的分类范围是若干纳米计-0.1微米被设计为附加的目标的超精细粒子精确分类，研究中的关系到其分类性能和粒子充电装置和确认其性能。纳米大小的环境气溶胶粒子分类测量使用设计的DMA进行了核实。2）对KANAZAWAS亚城市区域的环境微粒物质进行了取样和化学成分分析，以调查对测量点中空气污染的当前条件的测量点的目标开发方法的目标，1998 - 1999年期间，各种采样分析方法和季节性浓度的浓度和成分的测量，颗粒大小成分的昼夜差异，而且道路交通的影响已经明确，测量技术已得到证实。3）对环境气溶胶颗粒组件的原位测量进行研究，以研究与每个颗粒序列上直接测量技术的开发，以下描述为性能。使用最新等效DMA的纳米尺寸气溶胶粒子的直接成分测量方法和粒子尺寸分类方法的开发;使用ICP的环境气溶胶的直接成分测量;使用ICP的注射器对所收集粒子的直接成分测量;使用GC-FID 4的注射器对所收集粒子的跟踪有机化合物的测量。用于化学分析的环境气溶胶每小时进行一次研究，用于对环境气溶胶常量的在线测量，以及利用环境气溶胶生长的条件进行的收集和化学分析的技术，如对Nucleus进行了调查。

1)Design and Development of nano-size Classiffication of Ambient Particulate Matters・DMA which classification range is several nanometers - 0.1 micrometers is designed for the purpose of the ultra fine-particle precision classification in addition, the study in relation to its classification performance and particle charging apparatus and is confirmed its performance.・Nano size ambient aerosol particle classification accuracy using designed DMA is confirmed.2) Sampling and Chemical Component Analysis of Ambient Particulate Matters in Sub-urban Area of KANAZAWAAs basic data to investigate the present condition of air pollution in the measuring points for the purpose of development of the measuring method of ambient aerosol components, the concentration and the component of ambient aerosol is measured by the various sampling analysis methods during the 1998〜1999 and a seasonal concentration fluctuation, the difference of the particles-size components by day and night, and road traffic influence is clarified, the measurement technique is established.3) Investigation into In-situ Measurements of Components of Ambient Aerosol ParticlesThe research in relation to development of direct measurement technique of components on each particle seizes described below is performed.・Development of direct component measuring method and particle size classification method of nano size aerosol particles using newly equipped DMA・The direct component measurement of ambient aerosol using ICP・The component measurement of collected particles in impingers using ICP・The measurement of trace organic compounds for collected particles in impingers using GC-FID4) Development and Evaluation of a System for Collecting Sub-Hourly ambient Aerosol for Chemical analysisIt carried out the research for on-line measurement of ambient aerosol constituents, the technique of collection and chemical analysis using ambient aerosol grown by condensation of ultra-pure water as nucleus is investigated.