10th International Aerosol Conference September 2 - September 7, 2018 America's Center Convention Complex St. Louis, Missouri, USA
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Aerosol Metrology for Atmospheric Science and Air Quality: The AEROMET Project
PAUL QUINCEY, Konstantina Vasilatou, Alfred Wiedensohler, Stefan Seeger, Luca Boarino, Petr Klapetek, Kai Dirscherl, Francisco Moreno, Peter Pedersen, Thomas Pedersen, Matjaz Zitnik, Jeanne Malet, Jenny Rissler, Szabina Torok, Markus Fiebig, Maria Ochsenkuehn-Petropoulou, Luca Stabile, Michele Laus, Armin Gross, Burkhard Beckhoff, NPL
Abstract Number: 156 Working Group: Instrumentation
Abstract The AEROMET project (2017 – 2020), within the European EMPIR programme, has the overall aim of developing and demonstrating methods for traceability and calibration of different aerosol instruments, with emphasis on environmental regulatory measurement. The relevant particle size range is from several nm up to 10 μm, mass concentrations (0.1 μg/m3 to 1000 μg/m3), number concentrations up to 106 particles per cm3 and airborne particle composition for such components as metals, anions, cations, elemental carbon and organic carbon. The specific objectives of the project are:
To develop reproducible reference methods for PM10 and PM2.5, including the design and building of a demonstration aerosol chamber system – for calibrating instruments using representative generated aerosols and to achieve target uncertainties below 15 %.
To establish traceable validated methods for the determination of major components of particulate matter such as elemental and organic carbon (EC/OC), total carbon, anions and cations and major metals (e.g. arsenic, cadmium, mercury, nickel), in order to meet the data quality objectives of current regulation.
To develop calibration procedures for Mobility Particle Size Spectrometers (MPSS) for ambient measurements in the size range up to 1000 nm – in support of standardisation requirements from ISO TC 24 WG 12 and CEN TC 264 WG 32. In addition, to provide calibration facilities for measuring particle number concentration using Condensation Particle Counters (CPCs) in ambient air – as required by the technical specification EN/TS 16976.
To apply mobile x-ray spectroscopy techniques combined within particle sampling techniques to quantify particle compositions in the field in real time.
To qualify a synchrotron-based Grazing Incidence X-Ray Fluorescence (GIXRF) setup as a traceable reference for quantitative chemical aerosol analysis using mobile and bench top GIXRF instrumentation. Full traceability will be achieved by the use of fabricated micro and nanostructures.
The presentation will aim to summarize the goals and challenges of the project, which is currently in its early stages, in order to encourage contributions from the community.