Laboratory measurement of secondary pollutant yields from ozone reaction with HVAC filters

Hugo Destaillats, Wenhao Chen, Michael Apte, Nuan Li, Michael Spears, Jérémie Almosni, Jianshun Zhang, William J. Fisk

Research output: Contribution to conferencePaper

Abstract

We used Proton Transfer Reaction - Mass Spectrometry (PTR-MS) and conventional sampling methods to monitor and identify trace level organic pollutants formed in heterogeneous reactions between ozone and HVAC filters in real time. Experiments were carried out using a bench-scale flow tube reactor operating with dry air and humidified air (50% RH), at realistically high ozone concentrations (150 ppbv). We explored different filter media (i.e., fiberglass and cotton/polyester blends) and different particle loadings (i.e., clean filter and filters loaded with particles for 3 months at the Lawrence Berkeley National Laboratory and the Port of Oakland, CA). Detailed emission dynamics of very low levels of certain organic pollutants from filter media upon ozone exposure in the presence of moisture have been obtained and analyzed.

Original languageEnglish (US)
StatePublished - Dec 1 2009
Event9th International Healthy Buildings Conference and Exhibition, HB 2009 - Syracuse, NY, United States
Duration: Sep 13 2009Sep 17 2009

Other

Other9th International Healthy Buildings Conference and Exhibition, HB 2009
CountryUnited States
CitySyracuse, NY
Period9/13/099/17/09

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Keywords

  • Building-related symptoms
  • HVAC filter
  • Ozone
  • PTR-MS
  • Secondary pollutants

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

Cite this

Destaillats, H., Chen, W., Apte, M., Li, N., Spears, M., Almosni, J., Zhang, J., & Fisk, W. J. (2009). Laboratory measurement of secondary pollutant yields from ozone reaction with HVAC filters. Paper presented at 9th International Healthy Buildings Conference and Exhibition, HB 2009, Syracuse, NY, United States.