Journal Article

PreJuSER-22391

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Aerosol chemical composition at Cabouw, The Netherlands as observed in two intensive periods in May 2008 and March 2009

Mensah, A. A.FZJ* ; Holzinger, R. ; Otjes, R. ; Trimborn, A.FZJ* ; Mentel, T.FZJ* ; ten Brink, H. ; Henzing, B. ; Kiendler-Scharr, A.FZJ*

2012
EGU Katlenburg-Lindau

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Please use a persistent id in citations: http://hdl.handle.net/2128/7539  doi:10.5194/acp-12-4723-2012

Abstract: Observations of aerosol chemical composition in Cabauw, the Netherlands, are presented for two intensive measurement periods in May 2008 and March 2009. Sub-micron aerosol chemical composition was measured by an Aerodyne Aerosol Mass Spectrometer (AMS) and is compared to observations from aerosol size distribution measurements as well as composition measurements with a Monitor for AeRosol and GAses (MARGA) based instrument and a Thermal-Desorption Proton-Transfer-Reaction Mass-Spectrometer (TD-PTR-MS). An overview of the data is presented and the data quality is discussed. In May 2008 enhanced pollution was observed with organics contributing 40% to the PM1 mass. In contrast the observed average mass loading was lower in March 2009 and a dominance of ammonium nitrate (42%) was observed. The semi-volatile nature of ammonium nitrate is evident in the diurnal cycles with maximum concentrations observed in the morning hours in May 2008 and little diurnal variation observed in March 2009. Size dependent composition data from AMS measurements are presented and show a dominance of organics in the size range below 200 nm. A higher O:C ratio of the organics is observed for May 2008 than for March 2009. Together with the time series of individual tracer ions this shows the dominance of OOA over HOA in May 2008.

Keyword(s): J

Note: This work was supported through the FP6 project EUCAARI (Contract 34684) and EUSAAR (European Supersites for Atmospheric Aerosol Research, EU FP6 Integrated Infrastructures Initiatives project, No. FP6-026140)

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Contributing Institute(s):

1. Troposphäre (IEK-8)

Research Program(s):

1. Atmosphäre und Klima (P23)

Appears in the scientific report 2012

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Database coverage:
; ; ; ; Current Contents - Social and Behavioral Sciences ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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