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Evaluation of indoor air quality in high-rise residential buildings in Bangkok and factor analysis

机译：曼谷高层住宅建筑室内空气质量评价及因子分析

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摘要

High-rise residential developments are rapidly increasing in urban areas. Smaller residential units in this high rise bring a reduction in windows, resulting in poor indoor air ventilation. In addition, materials used in interiors can emit volatile organic compounds (VOCs), which can significantly affect human health. Since people spend 90% of their time indoors, an evaluation of indoor air quality is especially important for high-rise residential buildings with an analysis of determining factors. This study aims to measure the concentrations of VOCs, formaldehyde, and particulate matter (PM2.5 and PM10) in 9 high-rise residential buildings in Bangkok by using the accidental sampling method (n = 252) and to investigate possible important determining factors. The results show that the average concentrations of VOCs, formaldehyde, PM2.5, and PM10 in 9 high-rise residential buildings were at good to moderate levels in the indoor air quality index (IAQI) and that high pollutant concentrations were rarely found except in new constructions. Moreover, it was found that the age of buildings shows strong correlations with all pollutants (p value 0.0001). Old buildings showed significantly lower pollutant concentrations than new and under-construction buildings at a 95% confidence level. The findings from this investigation can be used as part of sustainable well-being design guidelines for future high-rise residential developments.
机译：城市地区的高层住宅发展迅速增加。这种高层的较小的住宅单元带来了减少的窗户，导致室内空气通风不佳。此外，内部中使用的材料可以发出挥发性有机化合物（VOC），这会显着影响人类健康。由于人们在室内花费了90％的时间，因此对室内空气质量的评估对于高层住宅建筑特别重要，分析确定因素。本研究旨在通过使用意外采样方法（n = 252）并调查可能的重要决定因素，测量曼谷9种高层住宅建筑中的VOCs，甲醛和颗粒物（PM2.5和PM10）的浓度。结果表明，在9个高层住宅建筑中的VOC，甲醛，PM2.5和PM10的平均浓度良好，在室内空气质量指数（IAQI）中均为适中的水平，除了在中，很少发现高污染物浓度新建筑。此外，发现建筑物的年龄显示出与所有污染物的强烈相关性（P值<0.0001）。旧建筑物显示出比新的置信水平的新建筑浓度明显降低污染物浓度。本调查的调查结果可作为可持续福祉设计指南的一部分，以实现未来的高层住宅发展。

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