R. Schnitzhofer

TL;DR: In this paper, the authors studied nano-particle growth in the Clouds Leaving OUtdoors Droplets (CLOUD) chamber, starting from the formation of molecular clusters and found that atmospheric ions and small acid-base clusters, which are not generally accounted for in the measurement of sulphuric acid vapour, can participate in the growth process.

TL;DR: This work uses a proton transfer reaction time of flight mass spectrometer (PTR-TOF) for 10 Hz EC measurements of full mass spectra up to m/z 315 to determine ion mass peaks from ambient air concentration above a managed, temperate mountain grassland in Neustift, Stubai Valley, Austria.

TL;DR: The recently developed PTR-TOF instrument was evaluated to measure methanol fluxes emitted from grass land using the eddy covariance method and showed excellent agreement.

TL;DR: In this article, the compositions of small NH3-H2SO4 clusters over a wide range of atmospherically relevant environmental conditions were mapped out, supporting previous evidence for acidbase reactions being the essential mechanism behind the formation of these clusters under atmospheric conditions and up to sizes of at least 2 nm.

TL;DR: In this article, the authors presented the first experimental survey of new particle formation (NPF) rates spanning free tropospheric conditions, and compared these experimental data with calculated cluster formation rates from the Atmospheric Cluster Dynamics Code with cluster evaporation rates obtained from quantum chemistry using data obtained in the European Organization for Nuclear Research CLOUD (Cosmics Leaving OUtdoor Droplets) chamber.