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

DMA原位测量纳米级环境气溶胶颗粒化学成分技术的发展

• 批准号: 10680539
• 负责人: FURUUCHI Masami
• 金额: $ 2.24万
• 依托单位: KANAZAWA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10680539/
• 关键词: SPM; nano-size; DMA; Particle size components; In-Situ; Mass analysis; 浮遊粒子物質

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.

1)环境颗粒物纳米分级的设计与开发·DMA是为超细颗粒物的精密分级而设计的分级范围为几个纳米-0.1微米的分级机，并对其分级性能和颗粒荷电装置进行了研究，确认了其性能。·验证了所设计的DMA对纳米尺度大气气溶胶粒子分类的准确性。2）神奈川县郊区大气颗粒物的采样及化学成分分析作为调查各测点空气污染现状的基础数据，为发展大气气溶胶成分的测量方法提供了依据。利用1998 ~ 1999年不同采样分析方法对大气气溶胶的浓度和组分进行了测定，并对大气气溶胶浓度的季节变化、颗粒物粒径组分的昼夜差异、3）大气气溶胶颗粒物成分的现场测量研究本研究是关于发展直接测量各颗粒物成分的技术的研究。利用新装备的DMA开发纳米尺寸气溶胶颗粒的直接成分测量方法和粒度分级方法·利用ICP开发环境气溶胶的直接成分测量·利用ICP开发撞击器中收集的颗粒的成分测量·利用GC-FID开发撞击器中收集的颗粒的痕量有机化合物的测量4）开发和评估用于收集亚微米尺寸气溶胶颗粒的系统环境气溶胶化学分析用小时气溶胶进行了环境气溶胶组分在线测量的研究，探讨了以超纯水冷凝生成的环境气溶胶为核的收集和化学分析技术。