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Ozone removal by occupants in a classroom

Fischer, Andreas (författare)
Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology
Ljungström, Evert, 1949 (författare)
Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology
Langer, Sarka, 1960 (författare)
Gothenburg University,RISE,SP Kemi Material och Ytor,University of Gothenburg, Sweden,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology
 (creator_code:org_t)
Elsevier BV, 2013
2013
Engelska.
Ingår i: Atmospheric Environment. - : Elsevier BV. - 1352-2310 .- 1873-2844. ; 81, s. 11-17
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Ozone concentrations were measured in a classroom with and without occupants, with the purpose to quantify effects on indoor O3 concentrations. The teacher and 24 11-year old pupils each removed O3 at a rate, first order in O3, corresponding to a rate constant of (2.5±0.6)×10-5s-1 in the present locality and to a deposition velocity of 0.45cms-1. The O3-removal caused by the occupants was approximately 2.6 times larger than that of the available surfaces belonging to the classroom and its furniture. Observation of 6-methyl-5-hepten-2-one and 4-oxopentanal at maximum concentrations of 0.2ppb and 0.7ppb, respectively, suggested squalene from human skin oil as a reactive, ozone-consuming substance. There are indications of a source of 4-oxopentanal in the classroom, even some time after the pupils left for the day. The work presented is important for a proper description of indoor exposure, both to ozone itself and some of its reaction products when trying to quantify relations between exposure and health effects.

Ämnesord

NATURVETENSKAP  -- Kemi -- Annan kemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)

Nyckelord

4-Oxopentanal
Deposition velocity
Indoor environment
Ozone
School
Squalene
Deposition velocities
Deposition
Rate constants
Teaching
volatile organic compound
atmospheric deposition
concentration (composition)
indoor air
organic compound
pollutant removal
velocity
adsorption
allergic reaction
article
body surface
bronchospasm
building material
circadian rhythm
concentration (parameters)
human
limit of detection
oxidation
physical activity
priority journal
trigeminal nerve
waste component removal
Squalene
4-Oxopentanal
Ozone Deposition velocity
Indoor environment
School

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