Search for dissertations about: "NO2"

Showing result 1 - 5 of 92 swedish dissertations containing the word NO2.

  1. 1. Satellite Limb-Scatter Observations of Stratospheric NO2 and O3 -Retrievals, Validation and Applications

    Author : Samuel Brohede; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; satellite; NO2; Odin; limb-scatter; validation; OSIRIS; stratosphere; remote sensing; O3; retrieval;

    Abstract : Global observations of vertically resolved atmospheric constituents with high temporal and spatial sampling are crucial for various scientific assessments of ozone depletion and climate change. This thesis explains how such data can be retrieved from satellite limb-scatter observations. READ MORE

  2. 2. The Use of GIS in Assessing Exposure to Airborne Pollutants

    University dissertation from Division of Occupational and Environmental Medicine

    Author : Emilie Stroh; Lund University.; Lunds universitet.; Lund University.; Lunds universitet.; [2011]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NOx; air pollution; GIS; Exposure assessment; Lead; NO2;

    Abstract : GIS (Geographical Information System) has become a valuable tool in air pollution exposure assessment studies due to its abilities to accurately model and estimate exposure for large populations and areas. The general aim of the work presented in this thesis was to investigate the factors that affect the validity and precision in the assessment of human exposure to airborne pollution using GIS. READ MORE

  3. 3. Carbon Dioxide: The Unknown Factor in the Atmospheric Corrosion of Light Metals. A Laboratory Study

    University dissertation from Division of Occupational and Environmental Medicine

    Author : Daniel Bengtsson Blücher; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SO2; temperature; CO2; atmospheric corrosion; magnesium; NO2; aluminum alloys; NaCl; O3; Mg-Al alloys;

    Abstract : The atmospheric corrosion of Al and Mg-Al alloys was investigated using controlled air in the laboratory. The effects of CO2, temperature, NaCl, relative humidity, SO2, NO2 and O3 on corrosion rate and corrosion product composition were examined. READ MORE

  4. 4. Airway responses to NO2 and allergen in asthmatics

    University dissertation from Stockholm : Karolinska Institutet, Department of Medicine at Huddinge University Hospital

    Author : Charlotte Barck; Karolinska Institutet.; Karolinska Institutet.; [2005]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Air pollution; nitrogen dioxide; asthma; allergic inflammation; eosinophil cationic protein; neutrophilic cells; bronchoalevolar lavage; nasal lavage; induced sputum;

    Abstract : Nitrogen dioxide (N02), a gas produced by combustion, is a common environmental air pollutant. Individuals with asthma are more sensitive to N02 exposure than healthy subjects, according to results from controlled human-exposure studies. N02 can enhance the asthmatic response to inhaled allergen. READ MORE

  5. 5. Studies of the Selective Catalytic Reduction of Nitrogen Oxides with Dimethyl Ether

    University dissertation from Stockholm : Karolinska Institutet, Department of Medicine at Huddinge University Hospital

    Author : Stefanie Tamm; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; gas phase reaction; isocyanate; DME; acidic zeolite; reaction mechanism; lean deNOx; NO2 formation;

    Abstract : Dimethyl ether (DME) is one of the most energy-efficient and low CO2 emitting alternative fuels when produced from biomass. Similar to other vehicles with combustion engines, vehicles running on DME will most likely need after-treatment technologies for the reduction of NOx emissions to meet the most stringent upcoming legislations. READ MORE