Prediction of Long-Term Exposure to Indoor Air Pollutants Using Short-Term Measurements / JH. White
- Conference Author:
- Design and Protocol for Monitoring Indoor Air Quality (1987 : Cincinnati, Ohio)
- Physical Description:
- 1 online resource (13 pages) : illustrations, figures, tables
- Additional Creators:
- White, JH., American Society for Testing and Materials, and ASTM International
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- The Canadian federal and provincial health ministers released a document in 1987 entitled ¿̐ưExposure Guidelines for Residential Indoor Air Quality.¿̐ư These guidelines establish the maximum recommended concentrations of nine pollutants (or pollutant groups) and a range of relative humidities, often with short-term and long-term levels separately identified. No simple measurement can determine whether a residence does and will continue to meet the guidelines. An analysis protocol is needed to predict concentration peaks and averages under conditions that are different from those that occurred during the test. To perform these analyses, many measurements and observations other than the simple point-in-time concentrations must be made. They include: instantaneous air change rates, taken at the same time and point as the pollutant concentrations; envelope leakage and effective ventilation areas; the weather during the test; and a definition of the exposure classification of the residence. This paper develops the logic for, and presents, a proposed protocol and subsidiary measurements and observations that could serve as a first attempt at meeting the needs of such a prediction technique. It is based on the single-cell model of Wadden and Scheff, plus the averaging techniques of Yuill, in addition to a few concepts developed by the author. Research needs include a better definition of non-ventilation removal mechanisms and source variability, as well as verification that the method adequately predicts both long-term average concentrations and critical short-term peaks.
- Dates of Publication and/or Sequential Designation:
- Volume 1989, Issue 1002 (January 1989)
- Air Pollution, Indoor—Analysis
- Environmental monitoring
- Indoor air pollution—Measurement—Congresses
- Indoor air pollution
- Indoor air quality—Measurement—Congresses
- Air change rates
- Effective ventilation
- Equivalent ventilation rates
- Field experiments
- Indoor air quality
- Mixing factor
- Pollutant concentration
- Source strengths
- Time constants
- 9780803150706 (e-ISBN)
- Digital File Characteristics:
- text file PDF
- Bibliography Note:
- Includes bibliographical references 9.
- Other Forms:
- Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
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Also available in PDF edition.
- Reproduction Note:
- Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1989. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
- Technical Details:
- Mode of access: World Wide Web.
- Source of Acquisition:
- ASTM International PDF Purchase price USD25.
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