2014 and before

ORACLE (v1.0): module to simulate the organic aerosol composition and evolution in the atmosphere
December 21, 2014

ORACLE (v1.0): module to simulate the organic aerosol composition and evolution in the atmosphere

A computationally efficient module to describe organic aerosol (OA) partitioning and chemical aging has been developed and implemented into the EMAC atmospheric chemistry–climate model. The model simulates the formation of secondary organic aerosol (SOA) from semivolatile (SVOCs), intermediate-volatility (IVOCs), and volatile organic compounds (VOCs).

A large source of low-volatility secondary organic aerosol
February 26, 2014

A large source of low-volatility secondary organic aerosol

Forests emit large quantities of volatile organic compounds (VOCs) to the atmosphere. Their condensable oxidation products can form secondary organic aerosol, a significant and ubiquitous component of atmospheric aerosol, which is known to affect the Earth’s radiation balance by scattering solar radiation and by acting as cloud condensation nuclei.

New particle formation in forests inhibited by isoprene emissions
September 17, 2009

New particle formation in forests inhibited by isoprene emissions

It has been suggested that volatile organic compounds (VOCs) are involved in organic aerosol formation, which in turn affects radiative forcing and climate. The most abundant VOCs emitted by terrestrial vegetation are isoprene and its derivatives, such as monoterpenes and sesquiterpenes.

Formation of anthropogenic secondary organic aerosol (SOA) and its influence on biogenic SOA properties
March 11, 2013

Formation of anthropogenic secondary organic aerosol (SOA) and its influence on biogenic SOA properties

Secondary organic aerosol (SOA) formation from mixed anthropogenic and biogenic precursors has been studied exposing reaction mixtures to natural sunlight in the SAPHIR chamber in Jülich, Germany. In this study aromatic compounds served as examples of anthropogenic volatile organic compound (VOC) and a mixture of α-pinene and limonene as an example for biogenic VOC.

The formation, properties and impact of secondary organic aerosol: current and emerging issues
July 29, 2009

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 required to evaluate its impact on atmospheric processes, climate and human health.

Stable Carbon Isotope Ratio Analysis of Anhydrosugars in Biomass Burning Aerosol Particles from Source Samples
February 7, 2012

Stable Carbon Isotope Ratio Analysis of Anhydrosugars in Biomass Burning Aerosol Particles from Source Samples

A new method for stable carbon isotope ratio analysis of anhydrosugars from biomass burning aerosol particle source filter samples was developed by employing Thermal Desorption – 2 Dimensional Gas Chromatography – Isotope Ratio Mass Spectrometry (TD-2DGC-IRMS).

Isotope ratio studies of atmospheric organic compounds: Principles, methods, applications and potential
May 15, 2014

Isotope ratio studies of atmospheric organic compounds: Principles, methods, applications and potential

In the atmosphere, both gas and particle phase organic trace compounds (OTC) have multiple effects on air quality and climate. Gaps exist in a fundamental understanding of the sources and sinks of organics and thus, knowledge needed to steer regulatory purposes is far from complete. Isotopes provide specific “fingerprints” in OTC.

A new aerosol collector for quasi on-line analysis of particulate organic matter: the Aerosol Collection Module (ACM) and first applications with a GC/MS-FID
October 12, 2010

A new aerosol collector for quasi on-line analysis of particulate organic matter: the Aerosol Collection Module (ACM) and first applications with a GC/MS-FID

In many environments organic matter significantly contributes to the composition of atmospheric aerosol particles influencing its properties. Detailed chemical characterization of ambient aerosols is critical in order to understand the formation process, composition, and properties of aerosols and facilitates source identification and relative contributions from different types of sources to ambient aerosols in the atmosphere.

Last Modified: 11.09.2024