Characterization of particulate matter concentrations during controlled indoor activities
Characterization of particulate matter concentrations during controlled indoor activities
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DOI：
10.1016/j.atmosenv.2010.01.009
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发表时间：
2010-04
影响因子：
5
通讯作者：
T. Glytsos;J. Ondrácek;L. Džumbová;I. Kopanakis;M. Lazaridis
中科院分区：
文献类型：
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作者：
T. Glytsos;J. Ondrácek;L. Džumbová;I. Kopanakis;M. Lazaridis
室内来源已被确定为室内环境中颗粒浓度增加的主要原因。这里介绍的工作是研究实验室受控室内活动下颗粒物数量尺寸分布和质量浓度的特征。目的是表征在特定来源的影响下产生的室内颗粒物浓度。测量是在空实验室（2006 年 9 月至 10 月）中使用 GRIMM SMPS+C 系统（颗粒尺寸范围在 11.1 至 1083.3 nm 之间）、DustTrak 气溶胶监测仪 (TSI) 和 P-Trak 超细颗粒计数器 (TSI) 进行的。研究的室内活动包括燃烧蜡烛、电炉加热、烧水、炸洋葱、吸尘、吹头发、喷头发、吸烟和烧香。 AMANpsd 计算机算法用于评估实测颗粒数粒径分布数据的模态结构。此外，还研究了不同排放源影响下颗粒物数量尺寸分布形状随时间的变化。最后计算粒子发射率。在吸烟、煎洋葱、燃烧蜡烛和燃烧香期间观察到高颗粒数浓度。在吸烟和喷发胶期间测量到最高的颗粒质量浓度。粒径分布向较大直径的转变表明在蜡烛燃烧、香烛燃烧、吸烟和洋葱煎炸过程中存在强烈的凝结效应。在洋葱煎炸和蜡烛燃烧过程中，尺寸分布主要是双峰的，而在香棒燃烧和吸烟实验中，尺寸分布仍然是单峰的。
Indoor sources have been identified as a major contributor to the increase of particle concentration in indoor environments. The work presented here is a study of the characteristics of particulate matter number size distribution and mass concentration under controlled indoor activities in a laboratory room. The objective is to characterize particulate matter concentrations indoors resulted under the influence of specific sources. Measurements were performed in an empty laboratory (period September–October 2006) using a GRIMM SMPS+C system (particle size range between 11.1 and 1083.3 nm), a DustTrak Aerosol Monitor (TSI) and a P-Trak Ultrafine Particle Counter (TSI). The studied indoor activities included candle burning, hot plate heating, water boiling, onion frying, vacuuming, hair drying, hair spraying, smoking and burning of incense stick. The AMANpsd computer algorithm was used to evaluate the modal structure of measured particle number size distribution data. Furthermore, the change of the particle number size distribution shape under the influence of different emission sources was studied versus time. Finally the particle emission rates were computed. High particle number concentrations were observed during smoking, onion frying, candle burning and incense stick burning. The highest particle mass concentrations were measured during smoking and hair spraying. The shift of the particle size distribution to larger diameters suggests the presence of strong coagulation effect during candle burning, incense stick burning, smoking and onion frying. The size distribution was mainly bimodal during onion frying and candle burning, whereas the size distribution remained unimodal during incense stick burning and smoking experiments.