Influence of toxic load effects on indoor air contaminant exposure metrics

Jason W. DeGraw, William P. Bahnfleth

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

Abstract

Measures of the risk to building occupants posed by indoor contaminant exposures must account for the combined impact of concentration (C) and duration of exposure (t). A common assumption embodied in Haber's law is that the outcome of an exposure is proportional to C × t, i.e., the effects of concentration and duration are equivalent. However, it is well known that the effects of many chemicals do not follow this simple relationship and are better approximated by a relationship of the form Cn × t. This is explored using a building-specific exposure metric that measures the relative impact of a chemical release event using the results of multizone simulations. Metrics are computed with various toxic load exponents, and the resulting metrics are then compared. In particular, these results are examined in terms of suitability for the evaluation of security improvements as might be done as part of new building design or a retrofit project.

Original languageEnglish (US)
Title of host publication12th International Conference on Indoor Air Quality and Climate 2011
Pages2480-2485
Number of pages6
StatePublished - Dec 1 2011
Event12th International Conference on Indoor Air Quality and Climate 2011 - Austin, TX, United States
Duration: Jun 5 2011Jun 10 2011

Publication series

Name12th International Conference on Indoor Air Quality and Climate 2011
Volume3

Other

Other12th International Conference on Indoor Air Quality and Climate 2011
CountryUnited States
CityAustin, TX
Period6/5/116/10/11

All Science Journal Classification (ASJC) codes

  • Pollution

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