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Media type:
E-Article
Title:
Instrumentation Issue in Indoor Air Quality Measurements: The Case with Respirable Suspended Particulates
Contributor:
Niu, Jianlei;
Lu, Brian M.K.;
Tung, Thomas C.W.
Published:
SAGE Publications, 2002
Published in:
Indoor and Built Environment, 11 (2002) 3, Seite 162-170
Language:
English
DOI:
10.1177/1420326x0201100306
ISSN:
1420-326X;
1423-0070
Origination:
Footnote:
Description:
Two fundamentally different instruments are commonly used to measure the concentration of respirable sus pended particulates in the indoor environment, one is a gravimetric method, and the other is a light-scattering method. The two methods are specified as alternatives in the current indoor air quality certification scheme in Hong Kong. In this paper, we investigated the correlation between the two methods and subsequently recom mended that the gravimetric method should be used as the reference method and the light scattering method for preliminary screening measurements as this can signifi cantly reduce man-hours and also can provide diurnal concentration variation profiles. A similar correlation study should be conducted for instrumentation used for measuring other pollutants, especially regarding total volatile organic compounds.