Essays about: "photolysis"

Showing result 1 - 5 of 6 essays containing the word photolysis.

  1. 1. Implementing spatial variance in the rate of photolytic breakdown of NO2 in urban street canyons

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Fabian Friberg; [2022]
    Keywords : cfd; computational fluid dynamics; NOx; street canyon; NO2; NO; O3; photolysis; OpenFOAM; Physics and Astronomy;

    Abstract : In this study a module for calculating the solar exposure of individual fluid cells was developed to more accurately represent the effect of photolysis on the pollutant dispersion in an urban street canyon. The module was tested and validated on 12 different cases, each with a different geographical location, time of year and/or time of day. READ MORE

  3. 2. Chemical kinetics and transport of tropospheric trace compounds - implications for environment and air quality

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Author : Stina Ausmeel; [2015]
    Keywords : Physics and Astronomy;

    Abstract : Fourier transform infrared spectroscopy techniques were used to study the kinetics of gas-phase reactions of three lactones, γ-valerolactone (GVL), 2(5H)-furanone (2(5HF) and 3-methyl-2(5H)-furanone (3M2(5H)F) with Cl atoms, OH radicals and O3 respectively. The experiments were performed in a photochemical reactor at a total pressure of 700 Torr at room temperature (298±2 K). READ MORE

  4. 3. Miljögifter – ett hot mot isbjörnens överlevnad?

    University essay from SLU/Dept. of Biomedical Sciences and Veterinary Public Health

    Author : Jannike Ring; [2014]
    Keywords : isbjörn; miljögifter; klimatförändring; organokloriner; kvicksilver; PCB; DDT; PFC; polar bears; climate change; pollutans; organochlorines; mercury;

    Abstract : De rådande klimatförändringarna drabbar Arktis och dess isbjörnar hårt. Smältande isar frigör miljögifter som i årtionden lagrats upp och kan nu ta sig in i och biomagnificeras i den marina näringskedjan, där isbjörnen som toppredator utsätts för hög toxisk stress. READ MORE

  5. 4. Phototransformation of pharmaceuticals in the environment : Multivariate modeling and experimental determination of photolysis half-lives

    University essay from Kemiska institutionen

    Author : Kristin Blum; [2013]
    Keywords : ;

    Abstract : .... READ MORE

  6. 5. Atmospheric Fate of Methyl Bromide

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Author : Magnus Joelsson; [2012]
    Keywords : Methyl bromide; ozone; Earth and Environmental Sciences;

    Abstract : Den fotokemiska reaktorn vid Copenhagen Centre for Atmospheric Research, Köpenhamns universitet, har i denna studie används för att bestämma nya värden på hastighetskonstanterna k(i) för reaktionen: CH3Br + OH -> produkter (i) och k(ii) för reaktionen: CH3Br + O(1D) -> produkter. (ii) Radikalerna (O(1D) och OH) framställdes i studien genom att fotolysera ozonmolekyler med UV-C-ljus. READ MORE