By the same authors

Skin and breath emissions as a source of indoor air pollution in a classroom

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Publication details

Title of host publication15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018
DatePublished - 2018
PublisherInternational Society of Indoor Air Quality and Climate
Original languageEnglish
ISBN (Electronic)9781713826514

Publication series

Name15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018

Abstract

The skin surface is an important sink for ozone and also, a source of secondary pollutants indoors. Exposure to these pollutants can have health impacts, particularly in highly occupied spaces. This paper evaluates skin and breath emissions in a typical classroom, using a detailed chemical model (INDCM). The results show that whilst emissions from skin are enhanced when the ventilation rate and hence ozone concentration is higher indoors, breath emissions become more significant when ventilation rates are lower. For instance, the predicted isoprene (from breath emissions) concentration decreased from ~5 to ~2 ppb when the air exchange rate increased from 0.6 to 1.8 h-1, whilst the concentration of nonanal increased from~5.5 ppb to ~7.5 ppb as outdoor ozone concentrations were higher for higher ventilation rates. It was also found that the presence of people indoors affected the oxidation chemistry indoors such that occupancy led to lower concentrations of oxidants and higher concentrations of organic nitrated material.

Bibliographical note

Funding Information:
This research is part of Cutting - Edge Approaches for Pollution Assessment in Cities (CAPACITIE) project, which has received funding from the European Union's Seventh Framework Programme for research, technological development and demonstration under grant agreement no 608014.

Funding Information:
This research is part of Cutting - Edge Approaches for Pollution Assessment in Cities (CAPACITIE) project, which has received funding from the European Union’s Seventh Framework Programme for research, technological development and demonstration under grant agreement no 608014.

Publisher Copyright:
© 2018 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018. All rights reserved.

Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.

    Research areas

  • Breath emissions surface interactions, Indoor air chemistry, Ozone, Skin emissions

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