Sökning: "Secondary organic aerosols"
Visar resultat 1 - 5 av 16 avhandlingar innehållade orden Secondary organic aerosols.
1. Analysis of tracer molecules from organic aerosols - Application of liquid phase microextraction to aerosol analysis
Sammanfattning : Airborne particulate matter is well known because of its adverse impacts on human health and its role in climate processes. In order to understand completely the role of aerosols in atmosphere, their chemical composition is of basic importance. LÄS MER
2. Nitrogen-containing products from atmospheric oxidation of volatile organic compounds
Sammanfattning : 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. LÄS MER
3. Secondary Organic Aerosols: Composition, Gas-to-Particle Partitioning and Physical Properties
Sammanfattning : 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. LÄS MER
4. Physical and Chemical Processes in the Formation of Biogenic secondary Organic Aerosols
Sammanfattning : Vegetation emits a vast number of biogenic volatile organic compounds (BVOC). In the atmosphere they are oxidised, predominantly by O3, OH radicals or NO3 radicals, depending e.g. on chemical structure. LÄS MER
5. Speeding up the Atmosphere : Experimental oxidation studies of ambient and laboratory aerosols using a flow reactor
Sammanfattning : Apart from gases, the air we breath consist of tiny, so called, aerosol particles. A cubic metre of air in a relatively clean environment can consist of several billion aerosol particles. The impact of these particles on human health and on climate is significant. LÄS MER