Fine and ultrafine particles in the Zürich Switzerland area measured with a mobile laboratory: an assessment of the seasonal and regional variation throughout a yearReport as inadecuate




Fine and ultrafine particles in the Zürich Switzerland area measured with a mobile laboratory: an assessment of the seasonal and regional variation throughout a year - Download this document for free, or read online. Document in PDF available to download.

1 Laboratory of Atmospheric Chemistry

Abstract : On occasion of the project YOGAM year of gas phase and aerosol measurements, the spatial and temporal variation of selected aerosol and gas phase parameters was assessed for the Zürich Switzerland area with a new mobile pollutant measurement laboratory. This assessment based on on-road measurements along a specified route on selected days during different seasons in 2001-2002, covering urban, suburban and rural regions. Special focus was put on the investigation and characterization of particles in the fine particle diameter D80 000 cm-3, respectively. Meteorology, i.e. prevailing weather conditions not only governed the day-to-day concentration variations in the selected area, but also influenced the formation of primary directly traffic-related and in few cases secondary biogenic or anthropogenic ultrafine particles. Overall, low temperatures regularly enhanced primary ultrafine particle formation in urban areas. There was a possible indication for relatively low number concentrations of secondary ultrafine particles during a few warm and sunny spring days. Mobile measurements as they were performed in this study have been shown to be suitable for pollutant assessments to obtain good information on spatial and day-to-day variability. For experimental studies concerning spatial resolution on a relatively short time scale



Author: N. Bukowiecki - J. Dommen - André Prévôt - E. Weingartner - Urs Baltensperger -

Source: https://hal.archives-ouvertes.fr/



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