Determination of exposure-response relationships for emissions from building products

被引:25
作者
Knudsen, HN [1 ]
Valbjorn, O [1 ]
Nielsen, PA [1 ]
机构
[1] Danish Bldg Res Inst, DK-2970 Horsholm, Denmark
关键词
building products; emission testing; exposure-response relationship; indoor air quality; sensory testing; perceived air quality; source characterization;
D O I
10.1111/j.1600-0668.1998.00007.x
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Building products have been shown to affect the perceived indoor air quality in buildings. Consequently, there is a need for characterizing the emissions from building products in sensory terms to evaluate their impact on the perceived air quality. Determining the exposure-response relationship between concentration of the emission from a building product and human response is recommended. A practical method is proposed based on an air-dilution system connected to the exhaust of a ventilated small-scale test chamber. The method was used to determine the exposure-response relationships for eight building products. For each building product, samples were placed in a test chamber. A typical room was used as a reference to calculate a building-realistic area-specific ventilation rate in the test chamber. A sensory panel assessed the immediate acceptability of polluted air at four different concentrations 3, 10 and 29 days after samples of the building products were placed in the test chambers. The exposure-response relationships show that the impact of dilution of polluted air on the perceived air quality varies between building products. For some building products it may only be possible in practice to improve the perceived air quality marginally by increasing dilution. The results of the present study suggest that for such building products, source control is recommended as the remedy for poor indoor air quality, rather than an increase of the ventilation rate.
引用
收藏
页码:264 / 275
页数:12
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