کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
249390 | 502608 | 2010 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Indoor and outdoor PM2.5 and PM10 concentrations in the air during a dust storm Indoor and outdoor PM2.5 and PM10 concentrations in the air during a dust storm](/preview/png/249390.png)
Asian dust storms (ADS) originating from the arid deserts of Mongolia and China are a well-known springtime meteorological phenomenon throughout East Asia. The ventilation systems in office utilize air from outside and therefore it is necessary to understand how these dust storms affect the concentrations of PM2.5 and PM10 in both the indoor and outdoor air. We measured dust storm pollution particles in an office building using a direct-reading instrument (PC-2 Quartz Crystal Microbalance, QCM) that measured particle size and concentration every 10 min for 1 h, three times a day. A three-fold increase in the concentrations of PM2.5 and PM10 in the indoor and outdoor air was recorded during the dust storms. After adjusting for other covariates, autoregression models indicated that PM2.5 and PM10 in the indoor air increased significantly (21.7 μg/m3 and 23.0 μg/m3 respectively) during dust storms. The ventilation systems in high-rise buildings utilize air from outside and therefore the indoor concentrations of fine and coarse particles in the air inside the buildings are significantly affected by outside air pollutants, especially during dust storms.
Journal: Building and Environment - Volume 45, Issue 3, March 2010, Pages 610–614