Quantitative relationship of sick building syndrome symptoms with ventilation rates
Quantitative relationship of sick building syndrome symptoms with ventilation rates
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DOI：
10.1111/j.1600-0668.2008.00575.x
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发表时间：
2009-04-01
期刊：
影响因子：
5.8
通讯作者：
Mendell, M. J.
中科院分区：
文献类型：
--
作者：
Fisk, W. J.;Mirer, A. G.;Mendell, M. J.
结合和分析已发表的研究数据，建立了最佳拟合方程和曲线，以量化办公室员工病态建筑综合征(SBS)症状患病率随通气率的变化。对于每项研究，都计算了斜率，代表了SBS症状患病率每单位人均通风量变化的分数。并计算了各坡度对应的通风率。在按研究规模加权后，线性回归方程被拟合到得到的数据点。积分斜率-通气率方程，得到相对SBS症状患病率与通气率的曲线。基于这些分析，当通气量从10个L/S人下降到5个人时，相对SBS症状患病率增加约23%(12%至32%)，而当通气量从10个L/S人增加到25个人时，相对患病率下降约29%(15%至42%)。SBS症状类型、建筑特征和室外空气质量的变化可能会导致特定情况下SBS症状患病率与通风率的关系不同于本文预测的平均关系，平均而言，提供更多的新风通风将降低病态建筑综合征(SBS)症状的患病率。然而，考虑到能源使用的成本，包括气候变化风险的增加，平衡增加通风的好处和风险是很重要的。本文初步估计了在更高的通风水平下，单位增加通风的增量健康效益如何减少。
Data from published studies were combined and analyzed to develop best-fit equations and curves quantifying the change in sick building syndrome (SBS) symptom prevalence in office workers with ventilation rate. For each study, slopes were calculated, representing the fractional change in SBS symptom prevalence per unit change in ventilation rate per person. Values of ventilation rate, associated with each value of slope, were also calculated. Linear regression equations were fitted to the resulting data points, after weighting by study size. Integration of the slope-ventilation rate equations yielded curves of relative SBS symptom prevalence vs. ventilation rate. Based on these analyses, as the ventilation rate drops from 10 to 5 l/s-person, relative SBS symptom prevalence increases approximately 23% (12% to 32%), and as ventilation rate increases from 10 to 25 l/s-person, relative prevalence decreases approximately 29% (15% to 42%). Variations in SBS symptom types, building features, and outdoor air quality may cause the relationship of SBS symptom prevalence with ventilation rate in specific situations to differ from the average relationship predicted in this paper.On average, providing more outdoor air ventilation will reduce prevalence rates of sick building syndrome (SBS) symptoms. However, given the costs of energy use, including increased risks of climate change, it is important to balance the benefits and risks of increased ventilation. This paper provides initial estimates of how the incremental health benefits per unit of increased ventilation diminish at higher levels of ventilation.