Impact of outdoor meteorology on indoor PM10, PM2.5 and PM1 concentrations in a naturally ventilated classroom

被引:44
作者
Chithra, V. S. [1 ]
Nagendra, S. M. Shiva [1 ]
机构
[1] Indian Inst Technol Madras, Dept Civil Engn, Environm & Water Resources Engn Div, Madras 600036, Tamil Nadu, India
关键词
Indoor air quality; Particulate matter; School; Meteorology; Natural ventilation; Traffic emissions;
D O I
10.1016/j.uclim.2014.10.001
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This paper discusses the effect of meteorological parameters (temperature, relative humidity, solar radiation, pressure, wind speed, wind direction and precipitation) on indoor coarse (PM10) and fine (PM2.5 and PM1) particles in a naturally ventilated classroom. The indoor PM10, PM2.5 and PM1 mass concentrations and meteorological parameters were monitored for 222 days during winter, summer, monsoon and post monsoon seasons of 2011 and 2012. The occurrence of atmospheric stagnation, recirculation and ventilation events at the study site was also estimated. It was found that the occurrence of stagnation was comparatively more frequent in post monsoons (74-81%) and winters (53-76%), recirculation in monsoon season (46%) and ventilation in summer seasons (45-59%). Maximum PM concentrations were also observed under stagnant atmospheric conditions. The highest concentrations of coarse and fine particles in the classroom were associated with strong and low winds respectively. Among the other meteorological variables, temperature (R-2 = 0.32-0.47), relative humidity (R-2 = 0.34-0.36) and precipitation (R-2 = 0.13-0.27) showed moderate dependence with indoor PM concentrations. However, solar radiation (R-2 = 0.06-0.15) and atmospheric pressure (R-2 = 0.16-0.21) showed poor correlation with indoor PM concentrations. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:77 / 91
页数:15
相关论文
共 47 条
[1]   SINGLE-STATION INTEGRAL MEASURES OF ATMOSPHERIC STAGNATION, RECIRCULATION AND VENTILATION [J].
ALLWINE, KJ ;
WHITEMAN, CD .
ATMOSPHERIC ENVIRONMENT, 1994, 28 (04) :713-721
[2]  
Attri SD, 2008, ATLAS HOURLY MIXING
[3]   Long-range transport of aerosols from agriculture crop residue burning in Indo-Gangetic Plains-A study using LIDAR, ground measurements and satellite data [J].
Badarinath, K. V. S. ;
Kharol, Shailesh Kumar ;
Sharma, Anu Rani .
JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS, 2009, 71 (01) :112-120
[4]   The effect of outdoor air and indoor human activity on mass concentrations of PM10, PM2.5, and PM1 in a classroom [J].
Branis, M ;
Rezácová, P ;
Domasová, M .
ENVIRONMENTAL RESEARCH, 2005, 99 (02) :143-149
[5]   Airborne particle concentrations at schools measured at different spatial scales [J].
Buonanno, G. ;
Fuoco, F. C. ;
Morawska, L. ;
Stabile, L. .
ATMOSPHERIC ENVIRONMENT, 2013, 67 :38-45
[6]   Comparison of indoor and outdoor concentrations of CO at a public school. Evaluation of an indoor air quality model [J].
Chaloulakou, A ;
Mavroidis, I .
ATMOSPHERIC ENVIRONMENT, 2002, 36 (11) :1769-1781
[7]   Indoor-outdoor relationships of particulate matter and nitrogen oxides under different outdoor meteorological conditions [J].
Chan, AT .
ATMOSPHERIC ENVIRONMENT, 2002, 36 (09) :1543-1551
[8]   Influences of Traffic Emissions and Meteorological Conditions on Ambient PM10 and PM2.5 Levels at a Highway Toll Station [J].
Cheng, Yu-Hsiang ;
Li, Yi-Sheng .
AEROSOL AND AIR QUALITY RESEARCH, 2010, 10 (05) :456-462
[9]   Characterizing and predicting coarse and fine particulates in classrooms located close to an urban roadway [J].
Chithra, V. S. ;
Nagendra, S. M. Shiva .
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION, 2014, 64 (08) :945-956
[10]   Chemical and morphological characteristics of indoor and outdoor particulate matter in an urban environment [J].
Chithra, V. S. ;
Nagendra, S. M. Shiva .
ATMOSPHERIC ENVIRONMENT, 2013, 77 :579-587