Sökning: "aerosols"

Visar resultat 1 - 5 av 132 avhandlingar innehållade ordet aerosols.

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

    Författare :Mårten Spanne; Ergonomi och aerosolteknologi; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Environmental technology; industrial hygiene; isocyanates; particles; sampling; aerosols; pollution control; Miljöteknik; kontroll av utsläpp;

    Sammanfattning : 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. LÄS MER

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

    Författare :Besim Mentes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 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;

    Sammanfattning : 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. LÄS MER

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

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

    Sammanfattning : 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. LÄS MER

  4. 4. Properties and Origin of Arctic Aerosols

    Författare :Ann-Christine Engvall; Jörg Gumbel; Frode Stordal; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Arctic aerosols; Arctic troposphere; air-mass transport; Atmosphere and hydrosphere sciences; Atmosfärs- och hydrosfärsvetenskap; atmosfärvetenskap; Atmospheric Sciences;

    Sammanfattning : 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. LÄS MER

  5. 5. Physico-chemical properties of atmospheric aerosols in the tropical troposphere

    Författare :Radovan Krejčí; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Tropics; Atmosphere; Atmosfären; Tropikerna;

    Sammanfattning : .... LÄS MER