Particle size characterization and emission rates during indoor activities in a house

摘要: Abstract Characterization and emission rates of indoor aerosols have been great interest. However, few studies presented quantitative determinations aerosol particle emissions during activities. In the current study we investigated physical characteristics size-fractionated particles different activities in a house (naturally ventilated) located Prague, Czech Republic. We utilized multi-compartment size-resolved model (MC-SIAM) to investigate indoor-to-outdoor relationship also estimate their rates. When windows main door were closed for several hours there minor that did not produce significant amounts particles, number concentration showed similar levels at locations. As expected, natural ventilation provide controlled particles. previous emphasized, cooking tobacco smoking are major sources indoors; total was, respectively, as high 1.8×105 3.6×104 cm−3 with around 380 36 cm−3 s−1. During intensive outdoor concentrations affected even though closed. It seems simple is able describe fate within construction; instead, numerical dynamic approach needed. Based on simulations, deposition rate was comparable friction velocity between 10–30 cm s−1 surface area volume ratio 2.9–3.1 m−1. The penetration factor equivalent G3 filter standards varied 0.6–1.2 h−1. analysis, produced incense stick burning remain airborne longer time than emitted undergo processes; therefore, need combined physical–chemical better evolution due