Bernhard Mentler

TL;DR: Measurements in the CLOUD chamber at CERN show that the rapid condensation of ammonia and nitric acid vapours could be important for the formation and survival of new particles in wintertime urban conditions, contributing to urban smog.

TL;DR: It is shown that gas-phase reactions of two RO2 radicals produce accretion products composed of the carbon backbone of both reactants, characterizing them as an effective source for the secondary organic aerosol.

TL;DR: The growth rates are sensitive to particle curvature, explaining widespread atmospheric observations that particle growth rates increase in the single-digit-nanometer size range, and demonstrate that organic vapors can contribute to particle growth over a wide range of tropospheric temperatures from molecular cluster sizes onward.

TL;DR: The formation mechanism of C19 and C20 accretion products from α-pinene oxidation, which are believed to be efficient SOA precursors, are reported on.

TL;DR: Iodic acid (HIO3) is known to form aerosol particles in coastal marine regions, but predicted nucleation and growth rates are lacking as discussed by the authors Using the CERN CLOUD (Cosmics Leaving Outdoor Droplets) chamber, they find that the nucleation rates of HIO3 particles are rapid, even exceeding sulfuric acid-ammonia rates under similar conditions.