Search for dissertations about: "secondary organic aerosol SOA"

Showing result 1 - 5 of 17 swedish dissertations containing the words secondary organic aerosol SOA.

2. 1. Nitrogen-containing products from atmospheric oxidation of volatile organic compounds

   Author : Epameinondas Tsiligiannis; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; VOC; anthropogenic; biogenic; SOA; atmospheric oxidation; organic aerosols; CIMS; FIGAERO; TMB; isoprene; HOM; organonitrates ONs ; NOx; OH; nitrate NO3 ; Go:PAM; SAPHIR;

   Abstract : Atmospheric oxidation of volatile organic compounds (VOC) produces a wide range of oxygenated organic products that lead to formation of secondary organic aerosol (SOA). SOA represents a significant fraction of the tropospheric aerosol that influence climate and human health. READ MORE

4. 2. Formation, ageing and thermal properties of secondary organic aerosol

   Author : Eva U. Emanuelsson; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; volatile organic compounds; biogenic; anthropogenic; secondary organic aerosol; troposphere; volatility; ozone;

   Abstract : In order to properly represent and predict the effects of aerosol in climate systems, an accurate description of their formation and properties is needed. This thesis describes work done to increase the knowledge of processes and properties of atmospherically relevant secondary organic aerosol (SOA) from both biogenic and anthropogenic origin. READ MORE

5. 3. Secondary Organic Aerosols: Composition, Gas-to-Particle Partitioning and Physical Properties

   Author : Anna Lutz; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; gas to particle conversion; volatility; secondary organic aerosols; FIGAERO; CIMS; monoterpenes; isoprene; SOA; BVOC;

   Abstract : Atmospheric aerosols influence our climate and air quality. Aerosol particles in the atmosphere are transformed through many different physical and chemical reactions. A substantial fraction of the particles in the atmosphere are of secondary origin, formed as a result of gas to particle conversion. READ MORE

6. 4. Characteristics of fresh and aged carbonaceous aerosol from anthropogenic combustion sources

   Author : Erik Nordin; Ergonomi och aerosolteknologi; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Aerosol; biomass combustion; gasoline vehicle exhaust; polycyclic aromatic hydrocarbons; secondary organic aerosol; soot; mass-mobility relationship; emissions; toxicity;

   Abstract : Emissions from anthropogenic combustion sources, such as light duty vehicles and small scale biomass combustion, contribute significantly to ambient aerosol particle concentrations both on local and global scales. These emissions have controlling impacts on public health and global climate. READ MORE

7. 5. Atmospheric Chemistry of Volatile Organic Compounds: Oxidation Products, Mechanisms and Secondary Organic Aerosol Formation

   Author : Julia Hammes; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; SOA; VOC; anthropogenic; biogenic; FIGAERO; CIMS; HOMs; ELVOCs; atmospheric oxidation; chemical mechanism; NOx; limonene; a-pinene; TMB; ozone; nitrate; OH; radical chemistry; RO2; G-FROST; GO:PAM;

   Abstract : The results from this work are a piece in understanding the complex puzzle of atmospheric aerosol formation. Secondary organic aerosol (SOA) formed by the oxidation of volatile organic compounds (VOC) in the atmosphere is a key component of air pollution with a strong negative impact on human health and influence on climate, but its formation is poorly understood. READ MORE