H. Herrmann

Publications578
h-index71
Citations19,254
Highly Influential Citations901
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The formation, properties and impact of secondary organic aerosol: current and emerging issues
Secondary organic aerosol (SOA) accounts for a significant fraction of ambient tropospheric aerosol and a detailed knowledge of the formation, properties and transformation of SOA is therefore… Expand
A European aerosol phenomenology 3: Physical and chemical characteristics of particulate matter from 60 rural, urban, and kerbside sites across Europe
This paper synthesizes data on aerosol (particulate matter, PM) physical and chemical characteristics, which were obtained over the past decade in aerosol research and monitoring activities at more… Expand
CAPRAM2.3: A Chemical Aqueous Phase Radical Mechanism for Tropospheric Chemistry
A Chemical Aqueous Phase Radical Mechanism (CAPRAM) for modelling troposphericmultiphase chemistry is described. CAPRAM contains (1) a detailed treatmentof the oxidation of organic compounds with one… Expand
Source characterization of biomass burning particles: The combustion of selected European conifers, African hardwood, savanna grass, and German and Indonesian peat
[1] We carried out a detailed size-resolved chemical characterization of particle emissions from the combustion of European conifer species, savanna grass, African hardwood, and German and Indonesian… Expand
Evidence for the existence of organosulfates from beta-pinene ozonolysis in ambient secondary organic aerosol.
TLDR
Several nitroxy-organosulfates originating from monoterpenes were found in the ambient samples, suggesting a role for nighttime chemistry in their formation, and their LC/MS chromatographic peak intensities suggest that they represent an important fraction of the organic mass in ambient aerosols, especially at night. Expand
Determination of levoglucosan in biomass combustion aerosol by high-performance anion-exchange chromatography with pulsed amperometric detection
Abstract Atmospheric particulate matter can be strongly affected by smoke from biomass combustion, including wildfires, prescribed burns, and residential wood burning. Molecular source tracer… Expand
Production of extremely low volatile organic compounds from biogenic emissions: Measured yields and atmospheric implications
TLDR
Investigating the formation of extremely low volatility organic compounds (ELVOC) from O3 and OH radical oxidation of several monoterpenes and isoprene in a series of laboratory experiments shows that biogenic SOA formation in general, and ELVOC in particular, play crucial roles in atmospheric CCN production. Expand
Methyl-nitrocatechols: atmospheric tracer compounds for biomass burning secondary organic aerosols.
TLDR
Detailed chemical analysis of wintertime PM₁₀ collected at a rural village site in Germany showed the presence of a series of compounds that correlated very well with levoglucosan, a known biomass burning tracer compound, indicating that they originated from biomass burning. Expand
Towards a more detailed description of tropospheric aqueous phase organic chemistry: CAPRAM 3.0
Abstract CAPRAM 3.0 is the latest development of the chemical aqueous phase radical mechanism (CAPRAM) series which is incorporating CAPRAM 2.4 (Ervens et al., 2003a, Journal of Geophysical… Expand
Aerosol-chamber study of the α-pinene/O3 reaction: influence of particle acidity on aerosol yields and products
Abstract α -Pinene ozonolysis was carried out in the presence of ammonium sulfate or sulfuric acid seed particles in a 9 m 3 Teflon chamber at the mixing ratios of 100 ppbv for α -pinene and about 70… Expand
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