Search for dissertations about: "aerosols"

Showing result 1 - 5 of 125 swedish dissertations containing the word aerosols.

  1. 1. On the Determination of Reactive Compounds in Aerosols

    University dissertation from Division of Ergonomics and Aerosol Technology, Department of Design Sciences Lund University

    Author : Mårten Spanne; [2000]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Environmental technology; industrial hygiene; isocyanates; particles; sampling; aerosols; pollution control; Miljöteknik; kontroll av utsläpp;

    Abstract : Many sources of airborne contaminants have always been present in various work environments. With the development of thermosetting plastic systems, the use of reactive chemical compounds was greatly increased and thus also the risk of exposure to reactive and potentially hazardous compounds. READ MORE

  2. 2. Accelerator-Based Chemical and Elemental Analysis of Atmospheric Aerosols

    University dissertation from Division of Nuclear Physics, P. O. Box 118, SE-221 00 Lund, Sweden

    Author : Besim Mentes; [1999]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; elemental analysis; chemical speciation; ammonium bisulphate; ammonium sulphate; sulphuric acid; ammonium chloride; Fysicumarkivet A:1999:Mentes; ammonium nitrate; sodium sulphate; volatile carbon; non-volatile carbon; Kärnfysik Fysicumarkivet A:1999:Mentes; Nuclear physics; Ion beam analysis IBA ; thermography; atmosphere; aerosols;

    Abstract : Aerosol particles have always been present in the atmosphere, arising from natural sources. But it was not until recently when emissions from anthropogenic (man made) sources began to dominate, that atmospheric aerosols came into focus and the aerosol science in the environmental perspective started to grow. READ MORE

  3. 3. Multiple perspectives on absorbing aerosols over the northern Indian Ocean and Asia

    University dissertation from Stockholm : Department of Meteorology, Stockholm University

    Author : Friederike Höpner; Frida Bender; Annica Ekman; Heike Wex; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; aerosols; black carbon; air pollution; South Asia; Atmospheric Sciences and Oceanography; atmosfärvetenskap och oceanografi;

    Abstract : Aerosol particles in the atmosphere scatter and absorb solar radiation, and thereby affect the Earth's energy budget, but the magnitude of the overall radiative effect due to aerosol-radiation interactions is uncertain. In particular, the impact of absorbing aerosol particles, mainly black carbon (BC), organic carbon and dust, is not completely understood. READ MORE

  4. 4. Properties and Origin of Arctic Aerosols

    University dissertation from Stockholm : Meteorologiska institutionen (MISU)

    Author : Ann-Christine Engvall; Jörg Gumbel; Frode Stordal; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Arctic aerosols; Arctic troposphere; air-mass transport; NATURAL SCIENCES Earth sciences Atmosphere and hydrosphere sciences; NATURVETENSKAP Geovetenskap Atmosfärs- och hydrosfärsvetenskap; atmosfärvetenskap; Atmospheric Sciences;

    Abstract : The present thesis deals with the origin and physics of aerosols in the Arctic atmosphere. These show a large annual variability due to changes of the photochemical and cloud processes as well as of the synoptic-scale atmospheric pressure patterns. READ MORE

  5. 5. Traffic Emissions of Aerosols

    University dissertation from Stockholm : Department of Applied Environmental Science (ITM), Stockholm University

    Author : Matthias Vogt; Douglas Nilsson; Eiko Nemitz; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Primary Aerosol Emissions; Carbon Dioxide Emissions; Traffic Aerosol; Urban Aerosol; Traffic Activity; Emission Factors; Eddy Covariance; Aerosol Flux; NATURAL SCIENCES Earth sciences Atmosphere and hydrosphere sciences; NATURVETENSKAP Geovetenskap Atmosfärs- och hydrosfärsvetenskap; Applied Environmental Science; tillämpad miljövetenskap;

    Abstract : Non-exhaust traffic emissions are unregulated, yet the mass emission of non-exhaust particles may be larger than exhaust emissions. In addition, their emission factors (EF) are more uncertain than exhaust emissions. This thesis presents aerosol flux measurements in Stockholm using the eddy covariance method. READ MORE