Determination of exposure-response relationships for emissions from building products
Determination of exposure-response relationships for emissions from building products
复制标题
确定建筑产品排放的暴露-响应关系
DOI：
--
复制
发表时间：
1998
期刊：
影响因子：
--
通讯作者：
P. Nielsen
中科院分区：
文献类型：
--
作者：
H. Knudsen;O. Valbjørn;P. Nielsen
摘要建筑产品已被证明会影响建筑物内的室内空气质量。因此，有必要从感官上表征建筑产品的排放，以评估其对感知空气质量的影响。建议确定建筑产品排放物浓度与人类反应之间的响应关系。提出了一种实用的方法，基于一个空气稀释系统连接到一个通风的小型试验箱的排气。该方法被用来确定八个建筑产品的响应关系。对于每个建筑产品，将样品放置在测试室中。一个典型的房间被用作参考，以计算一个建筑物的现实面积特定的通风率在测试室。在将建筑产品样品放入试验室后3、10和29天，感官小组评估了四种不同浓度的污染空气的即时可接受性。污染-响应关系表明，污染空气稀释对感知空气质量的影响因建筑产品而异。对于某些建筑产品，在实践中可能只能通过增加稀释来略微改善感知的空气质量。本研究的结果表明，对于这样的建筑产品，源控制建议作为补救措施的室内空气质量差，而不是增加通风量。
Abstract 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.