Water, Air, & Soil Pollution: Focus

, Volume 9, Issue 1–2, pp 3–13 | Cite as

Sources and Variability of Indoor and Outdoor Gaseous Aerosol Precursors (O3, NOx and VOCs)

  • M. LazaridisEmail author
  • V. Aleksandropoulou


Measurements of indoor and outdoor aerosol concentrations and their gaseous precursors (O3, NO and NO2) as well as volatile organic compounds (VOCs) concentrations were performed at two houses in the Oslo metropolitan area. The variability of the concentration of gaseous compounds was studied in respect to their sources in the indoor and outdoor environments. Domestic heating during the winter and photochemical production during the summer were the main sources for outdoor NOx and O3. In the indoor environment infiltration of outdoor air, candle burning, smoking and indoor chemical reactions were the main sources affecting their concentrations. The concentrations of VOCs outdoors were enhanced during the summer due to biogenic emissions whereas in the indoor environment their values were affected mostly by emissions from materials used during the recent refurbishing of the houses (>0.4 mg/m3).


Indoor air quality VOC Ozone Nitrogen oxides Human exposure 



This work was supported by the European Commission under the grant EVK4-CT-2000-00018 (Urban–Aerosol project). This work was supported by the Research Committee of Technical University of Crete under the grant for basic Research 2006. The authors acknowledge the help of Norbert Schmidbauer from NILU, Norway during the VOC measurements.


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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  1. 1.Department of Environmental EngineeringTechnical University of CreteChaniaGreece

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