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首页> 外文会议>Tenth International Conference on Modelling, Monitoring and Management of Air Pollution Jul, 2002 City of Segovia >Aerosol concentration and composition in four Italian towns
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Aerosol concentration and composition in four Italian towns

机译：意大利四个城镇的气溶胶浓度和组成

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摘要

The composition of particulate matter in the atmosphere of four major italian towns (Florence, Genoa, Milan and Naples) has been studied with the extended applicationt of Ion Beam Analysis. The aerosol sampling campaign has been contemporarily carried out in urban zones characterised by medium-heavy traffic conditions, during the first weeks of year 2001. We used two-stage continuous streaker samplers which provide the separation of the particulate matter in the fractions PM2.5 and PM10. Characterisation of particulate has been performed with PIXE, in the two fractions, TOF-SIMS (Time-of-Flight Secondary Ion Mass Spectroscopy) and optical analyses. The 3 MeV proton beam of the INFN accelerator facility at the University of Florence was used for PIXE hourly elemental concentrations, while the attenuation of a laser beam through the samples gave an estimate' of the total aerosol mass. SIMS analyses have been performed at the University of Antwerp, with a Cameca ION-TOF IV device.
机译：随着离子束分析技术的广泛应用，研究了意大利四个主要城镇（佛罗伦萨，热那亚，米兰和那不勒斯）大气中颗粒物质的组成。在2001年的头几周，气溶胶采样活动已经在交通繁忙的城市地区进行了。我们使用了两阶段连续式Steraker采样器，用于分离PM2.5部分中的颗粒物。和PM10。用PIXE对TOF-SIMS（飞行时间二次离子质谱）和光学分析这两个部分进行了颗粒表征。佛罗伦萨大学INFN加速器设施的3 MeV质子束用于PIXE每小时的元素浓度，而激光束通过样品的衰减给出了总气溶胶质量的估计值。 SIMS分析已在安特卫普大学使用Cameca ION-TOF IV设备进行。

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