Aerosol chemical composition at Cabauw , The Netherlands as observed in two intensive periods in May 2008 and March 2009
Aerosol chemical composition at Cabauw , The Netherlands as observed in two intensive periods in May 2008 and March 2009
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2008 年 5 月和 2009 年 3 月两个密集期观测到的荷兰 Cabauw 气溶胶化学成分
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
A. Kiendler‐Scharr
中科院分区：
文献类型：
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作者：
A. Mensah;R. Holzinger;R. Otjes;A. Trimborn;T. Mentel;H. T. Brink;B. Henzing;A. Kiendler‐Scharr
介绍了2008年5月和2009年3月两个密集测量期在荷兰Cabauw进行的气溶胶化学成分观测。亚微米气溶胶的化学成分进行了测量的Aerodyne气溶胶质谱仪（AMS），并进行了比较，从气溶胶粒径分布测量的观察，以及组成测量与监测器的气溶胶和气体（MARGA）为基础的仪器和热解吸质子转移反应质谱仪（TD-PTR-MS）。概述了数据，并讨论了数据质量。2008年5月，污染加剧，有机物占PM 1质量的40%。相比之下，2009年3月观察到的平均质量负荷较低，硝酸铵占主导地位（42%）。硝酸铵的半挥发性在昼夜循环中很明显，2008年5月的早晨观测到最大浓度，2009年3月观测到的日变化很小。AMS测量的尺寸依赖的组合物数据，并显示在小于200 nm的尺寸范围内的有机物的主导地位。2008年5月有机物的O：C比高于2009年3月。连同单个示踪离子的时间序列，这显示了2008年5月OOA对HOA的主导地位。
Observations of aerosol chemical composition in Cabauw, the Netherlands, are presented for two intensive measurement periods in May 2008 and March 2009. Submicron 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 MassSpectrometer (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.
影响因子：
120.7
作者：
Pope, CA;Burnett, RT;Thurston, GD
通讯作者：
Thurston, GD