CO2 Emission Rates from Humans at Light Activity (ICHEAR project)

Mitsuharu Sakamoto, Kazuki Kuga, Kazuhide Ito, Gabriel Bekö, Jonathan Williams, Pawel Wargocki*

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


    Carbon dioxide (CO2) concentration has been used as a marker of ventilation effectiveness in the presence of people and as a marker of indoor air quality. CO2 concentration indoors is a result of the rate at which outdoor air is supplied
    indoors as well as the emission rate of CO2. The main source of CO2 indoors is humans. The emission rate depends on the metabolic processes and energy expenditure; other factors may affect production rate and respiration, such as temperature and elevated levels of pollutants, and consequently, the emission rate. There are methods to estimate the emission rates of CO2 from humans. Still, there are limited data from actual measurements of emission rates from humans under controlled environmental conditions and metabolic rates. The present study filled this gap by estimating CO2 emission rates from humans at the light activity. The study is a part of a larger project ICHEAR aiming at examining the emission rates from humans and their transformations in indoor environments.
    Original languageEnglish
    Title of host publication16th International Conference on Indoor Air Quality and Climate (INDOOR AIR 2020) : Proceedings of a meeting held 1 November 2020, Online.
    PublisherInternational Society of Indoor Air Quality and Climate
    Publication date2020
    ISBN (Electronic)978-1-7138-2360-5
    Publication statusPublished - 2020
    Event 16th Conference of the International Society of Indoor Air Quality & Climate - Online
    Duration: 1 Nov 20204 Nov 2020
    Conference number: 16


    Conference 16th Conference of the International Society of Indoor Air Quality & Climate

    Bibliographical note

    Paper ID ABS-0402


    • Carbon dioxide emission rate
    • Temperature
    • Humidity
    • Thermal sensation
    • Age difference


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