Wintertime aerosol chemical composition, volatility, and spatial variability in the greater London area

Spatial variation of chemical composition and sources of submicron aerosol in Zurich during wintertime using mobile aerosol mass spectrometer data

Mobile measurements of PM1 (particulate matter with an aerodynamic diameter <1 μm) chemical composition using a quadrupole aerosol mass spectrometer and a multi-angle absorption photometer were performed using the PSI mobile laboratory during winter 2007/2008 and December 2008 in the metropolitan area of Zurich, Switzerland. Positive matrix factorization (PMF) applied to the organic fraction of...

Aerosol Composition , Sources and Processes during Wintertime in Beijing , China

Formation and aging of secondary organic aerosol from toluene: changes in chemical composition, volatility, and hygroscopicity

Secondary organic aerosol (SOA) is transformed after its initial formation, but this chemical aging of SOA is poorly understood. Experiments were conducted in the Carnegie Mellon environmental chamber to form secondary organic aerosol (SOA) from the photo-oxidation of toluene and other small aromatic volatile organic compounds (VOCs) in the presence of NOx under different oxidizing conditions. ...

Size distribution, mixing state and source apportionment of black carbon aerosol in London during wintertime

Black carbon aerosols (BC) at a London urban site were characterised in both winterand summertime 2012 during the Clean Air for London (ClearfLo) project. Positive matrix factorisation (PMF) factors of organic aerosol mass spectra measured by a high-resolution aerosol mass spectrometer (HR-AMS) showed traffic-dominant sources in summer but in winter the influence of additional non-traffic sourc...

Chemical composition of the Jungfraujoch aerosol

J. Cozic, B. Verheggen, E. Weingartner, J. Crosier, K. Bower, M. Flynn, H. Coe, S. Henning, M. Steinbacher, M. Collaud Coen, A. Petzold, and U. Baltensperger Laboratory for Atmospheric Chemistry, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland School of Earth, Atmospheric and Environmental Sciences, University of Manchester, M60 1QD, UK Leibniz-Institute for Tropospheric Research, 043...