Sökning: "PM2"

Visar resultat 1 - 5 av 33 uppsatser innehållade ordet PM2.

  1. 1. WRF-Chem vs machine learning approach to predict air quality in urban complex terrains: a comparative study

    Master-uppsats, Högskolan Dalarna/Mikrodataanalys

    Författare :Andrey Kudryashov; [2020]
    Nyckelord :Machine learning; WRF-Chem; comparative study; air quality;

    Sammanfattning : Air pollution is the main environmental health issues that affects all the regions and causes millions premature deaths every year. In order to take any preventive measures, we need the ability to predict pollution level and air quality. This task is conventionally solved using deterministic models. LÄS MER

  2. 2. Indoor and Outdoor Measurements of Particulate Matter with the Low-Cost Optical Sensor OPC-N3

    Kandidat-uppsats, Lunds universitet/Kärnfysik; Lunds universitet/Fysiska institutionen

    Författare :Ellen Grace Soroka; [2020]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : This paper evaluates the low-cost optical sensor OPC-N3 from Alphasense as a suitable scientific instrument for measuring particulate matter levels in air, both outdoors and in- doors. The time-keeping and data-retrieval was additionally improved by connecting the OPC-N3 to an Arduino microcontroller equipped with a real-time clock (RTC) module and an external SD card. LÄS MER

  3. 3. DISTRICT HEAT PRICE MODEL ANALYSIS : A risk assesment of Mälarenergi's new district heat price model

    Uppsats för yrkesexamina på avancerad nivå, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik; Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Författare :Erik Landelius; Magnus Åström; [2019]
    Nyckelord :district heating; multilinear regression; Bootstrapping; Mälarenergi; weather parameters; heat prediction; statistical inference; Unscrambler;

    Sammanfattning : Energy efficiency measures in buildings and alternative heating methods have led to a decreased demand for district heating (DH). Furthermore, due to a recent increase in extreme weather events, it is harder for DH providers to maintain a steady production leading to increased costs. These issues have led DH companies to change their price models. LÄS MER

  4. 4. Air pollution emitted during traditional coffee ceremonies in Ethiopia, a health risk for women

    Master-uppsats, Lunds universitet/Miljövetenskaplig utbildning

    Författare :Johan Edlund; [2019]
    Nyckelord :air pollution; coffee ceremonies; Ethiopia; PAH; PM2.5; Science General;

    Sammanfattning : Indoor air pollution is a problem of great concern, estimating to cause around 2 million premature deaths, with 400.000 cases suspected to happen in Sub-Saharan Africa. In this thesis, indoor air pollution emissions associated with the Ethiopian traditional coffee ceremony has been studied as a model for cooking exposure. LÄS MER

  5. 5. Flow and Air Quality Modelling of a Car Cabin

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Oskar Jolérus; [2019]
    Nyckelord :CFD; PM2.5; Air quality; Multiphase; LPT;

    Sammanfattning : Adverse health effects attributable to both short- and long-term exposure to air pollution have turned the focus on different microenvironments. The interior of vehicles is of relevance as road traffic emissions and re-suspension of road dust are major sources of pollutants associated with adverse health effects. LÄS MER