Dynamic of Particulate Matter for Quotidian Aerosol Sources in Indoor Air

Atmosphere

Michael V. Zhukovsky¹  Hyam Nazmy Bader Khalaf²  Mostafa Yuness Abdelfatah Mostafa² 

[1] Institute of Industrial Ecology UB RAS, Sophy Kovalevskoy Street 20, 620990 Ekaterinburg, Russia;Physics Department, Faculty of Science, Minia University, Minia 61519, Egypt;

关键词: indoor sources;    indoor air quality;    particle number concentration;    particle size;    particulate matter;   

DOI  :  10.3390/atmos12121682

来源: DOAJ

【 摘 要 】

A correlation between the mass concentration of particulate matter (PM) and the occurrence of health-related problems or diseases has been confirmed by several studies. However, little is known about indoor PM concentrations, their associated risks or their impact on health. In this work, the PM₁, PM_2.5 and PM₁₀ produced by different indoor aerosol sources (candles, cooking, electronic cigarettes, tobacco cigarettes, mosquito coils and incense) are studied. The purpose is to quantify the emission characteristics of different indoor particle sources. The mass concentration, the numerical concentration, and the size distribution of PM from various sources were determined in an examination room 65 m³ in volume. Sub-micrometer particles and approximations of PM₁, PM_2.5 and PM₁₀ concentrations were measured simultaneously using a diffusion aerosol spectrometer (DAS). The ultrafine particle concentration for the studied indoor aerosol sources was approximately 7 × 10⁴ particles/cm³ (incense, mosquito coils and electronic cigarettes), 1.2 × 10⁵ particles/cm³ for candles and cooking and 2.7 × 10⁵ particles/cm³ for tobacco cigarettes. The results indicate that electronic cigarettes can raise indoor PM_2.5 levels more than 100 times. PM₁ concentrations can be nearly 55 and 30 times higher than the background level during electronic cigarette usage and tobacco cigarette burning, respectively. It is necessary to study the evaluation of indoor PM, assess the toxic potential of internal molecules and develop and test strategies to ensure the improvement of indoor air quality.

【 授权许可】

Unknown