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首页> 外文会议>International Symposium on Air Conditioning in High Rise Buildings '2000 Oct 24-27, 2000, Shanghai, P.R.China >A SIMPLE METHOD TO DETERMINE VOC EMISSIONS FROM CONSTANT EMISSION SOURCES AND ITS APPLICATION IN INDOOR AIR QUALITY STUDIES
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A SIMPLE METHOD TO DETERMINE VOC EMISSIONS FROM CONSTANT EMISSION SOURCES AND ITS APPLICATION IN INDOOR AIR QUALITY STUDIES

机译：一种确定恒定排放源挥发性有机化合物排放的简便方法及其在室内空气质量研究中的应用

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摘要

For constant emission sources, volatile organic compound (VOC) emission factors can be determined by their concentrations in static chambers. It is based on the hypothesis that the concentration in the static chamber increases linearly over time when the concentration in the chamber air is significantly lower than the surface concentration of the emission source. In the method, VOCs in the chamber air are collected using passive samplers determined by solvent extraction and GC/MS analysis. Emission factors of seven selected liquid-based consumer products have been determined. These products were deployed in two residential houses to evaluate the resulting VOC concentrations indoors. Target VOCs in the air of source room and living room, as well as in the personal exposure zone, were monitored. VOCs with high emissions from the products had the most significant increase in concentrations compared to the background data, while VOCs with no or low emissions had little impact. A simple mass balance model was applied to compare the measured and predicted VOC concentrations in the house. The model prediction based on emission factors obtained using the static chamber method represents a worst-case scenario.
机译：对于恒定排放源，挥发性有机化合物（VOC）排放因子可以通过其在静态室中的浓度来确定。基于这样的假设：当室内空气中的浓度明显低于排放源的表面浓度时，静态室内的浓度会随时间线性增加。在该方法中，使用通过溶剂萃取和GC / MS分析确定的无源采样器收集室内空气中的VOC。确定了七个选定的基于液体的消费产品的排放因子。这些产品被部署在两个住宅中，以评估室内产生的VOC浓度。监视源房间和起居室空气中以及个人暴露区域中的目标VOC。与背景数据相比，产品中排放量高的挥发性有机化合物的浓度增幅最大，而排放量低或低的挥发性有机化合物的影响很小。应用一个简单的质量平衡模型来比较房屋中测得的和预测的VOC浓度。基于使用静态腔室法获得的排放因子的模型预测代表了最坏的情况。

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