Sökning: "Aerosol mass spectrometry"

Visar resultat 1 - 5 av 23 avhandlingar innehållade orden Aerosol mass spectrometry.

  1. 1. Anthropogenic 129I Traced in Environmental Archives by Accelerator Mass Spectrometry

    Författare :Edvard Englund; Göran Possnert; Ala Aldahan; José María López-Gutiérrez; Uppsala universitet; []
    Nyckelord :Engineering physics; iodine-129; sediment; aerosol; reprocessing; Chernobyl; nuclear weapon; Sellafield; La Hague; accelerator mass spectrometry; AMS; Teknisk fysik;

    Sammanfattning : Since the beginning of the nuclear era, starting during the 1940s, large amount of radioactivity has been released into the environment. This thesis deals with the temporal and spatial distribution of the anthropogenic radioisotope 129I (T1/2= 15.7 Myr) in northern Europe. LÄS MER

  3. 2. Characteristics of fresh and aged carbonaceous aerosol from anthropogenic combustion sources

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

    Sammanfattning : 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. LÄS MER

  4. 3. Aerosol chemistry on the single particle level - an experimental study

    Författare :Maria Svane; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Aerosol mass spectrometry; surface ionization; alkali; ambient air; biomass combustion;

    Sammanfattning : .... LÄS MER

  5. 4. Remember the small giants - Occupational exposure and characterization of aerosol particles

    Författare :Patrik Nilsson; NanoLund: Centre for Nanoscience; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Agglomerates; engineerednanoparticles; aerosol mass spectrometry; hairdressers; diesel exhaust;

    Sammanfattning : BACKGROUND: Exposure to airborne particles in occupational environments can lead to both acute and long-term health effects in humans. To date, particle exposure limits in the air are typically given in terms of mass concentrations. LÄS MER

  7. 5. Alkali-containing aerosol particles-release during biomass combustion and ambient air concentrations

    Författare :Borka Kovacevik; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; aerosol; alkali metal; sodium; potassium; pyrolysis; combustion; biomass burning.;

    Sammanfattning : Air pollution in the form of particles has considerable influence on human health and climate. Atmospheric aerosol particles arise from direct emissions of particles and from the conversion of certain gases to particles in the atmosphere. LÄS MER