Use of reactive tracers to determine ambient OH radical concentrations: Application within the indoor environment

Iain R. White, Damien Martin, Maria Munoz-Herranz, Fredrik K. Petersson, Stephen J. Henshaw, Graham Nickless, Guy C. Lloyd-Jones, Kevin. C. Clemitshaw, Dudley E. Shallcross

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


The hydroxyl radical (OH) plays a key role in determining indoor air quality. However, its highly reactive nature and low concentration indoors impede direct analysis. This paper describes the techniques used to indirectly quantify indoor OH, including the development of a new method based on the instantaneous release of chemical tracers into the air. This method was used to detect ambient OH in two indoor seminar rooms following tracer detection by gas chromatography-mass spectrometry (GCMS). The results from these tests add to the small number of experiments that have measured indoor OH which are discussed with regard to future directions within air quality research.
Original languageEnglish
Pages (from-to)6269-6274
Number of pages6
JournalEnvironmental Science & Technology
Issue number16
Publication statusPublished - 2010

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