Characterization of particulate matter concentrations during controlled indoor activities

Glytsos, Thodoros; Ondráček, Jakub; Džumbová, Lucie; Kopanakis, I.; Lazaridis, Mihalis

doi:10.1016/j.atmosenv.2010.01.009

Cited by 114 publications

(82 citation statements)

References 41 publications

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“…On the other hand, penetration depends on particle dynamics [10]. Particulate matter characteristics generated indoors are strongly connected with the primary indoor sources [11,12], whereas, particles that originate from outdoors are determined by building characteristics, ventilation, transport, particle dynamics and outdoor PM characteristics [10,[13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Modeling of the aerosol infiltration characteristics in a cultural heritage building: The Baroque Library Hall in Prague

Chatoutsidou

Mašková

Ondráčková

et al. 2015

Building and Environment

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Please cite this article as: Chatoutsidou SE, Mašková L, Ondráčková L, Ondráček J, Lazaridis M, Smolík J, Modeling of the aerosol infiltration characteristics in a cultural heritage building: The Baroque Library Hall in Prague, Building and Environment (2015), doi: 10.1016/j.buildenv.2015 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A dynamic mass balance model was introduced taking account particle penetration from outdoors and indoor losses (deposition, ventilation). The model was used to determine deposition rate k and penetration efficiency P in 13 discrete size intervals. Model performance was evaluated using the coefficient of determination (R 2 ) by selecting different pairs of k and P. No unique solution found, thus, averaged values of k and P from the best correlated pairs were used to estimate infiltration factor. Good agreement between infiltration factor and I/O ratio confirmed that modeled k and P were well-estimated. The deposition rate was found to depend strongly on particle size with higher rates for ultrafine and coarse particles. Penetration efficiency, on the other hand, was not clearly related with particle size. The infiltration factor varied substantially with particle size with less effective removal for accumulation fraction (0.1-0.7 µm). Higher infiltration factor for ultrafine particles, compared to coarse particles, indicates that enrichment of the library at this size is caused by penetration from outdoors. On the other hand, human presence during visiting hours found to contribute significantly to coarse particles by increasing the indoor number concentration by a factor of 3, 3.2 and 2 during spring, summer and winter respectively.

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Section: Introductionmentioning

confidence: 99%

Modeling of the aerosol infiltration characteristics in a cultural heritage building: The Baroque Library Hall in Prague

Chatoutsidou

Mašková

Ondráčková

et al. 2015

Building and Environment

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“…led to higher indoor concentrations compared to the outdoors for all size ranges. The I/O ratios were lower than one only for the particles < 50 nm during periods with indoor sources, although some of the recorded activities (e.g., cooking and candle burning) emit mostly nano particles (Afshari et al, 2005;Buonanno et al, 2009;Glytsos et al, 2010). In these cases, the emitted particles were collected in the instruments in larger sizes due to the coagulation and condensation processes.…”

Section: Effect Of Indoor Sources On the I/o Ratiosmentioning

confidence: 99%

“…Also the GMDs in Oslo and Prague for unimodal size distributions were different under the influence of indoor sources, showing that indoor sources emit particles in specific size ranges according to the kind of the activity. Unimodal size distributions during emissions from controlled indoor activities in a laboratory room were reported by Glytsos et al (2010).…”

Section: Modal Structure Of Indoor and Outdoor Aerosolsmentioning

confidence: 99%

Number Concentrations and Modal Structure of Indoor/Outdoor Fine Particles in Four European Cities

Lazaridis

Eleftheriadis

Zdimal

et al. 2017

Aerosol Air Qual. Res.

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Indoor/outdoor aerosol size distribution was measured in four European cities (Oslo-Norway, Prague-Czech Republic, Milan-Italy and Athens-Greece) during 2002 in order to examine the differences in the characteristics of the indoor/outdoor modal structure and to evaluate the effect of indoor sources to the aerosol size distributions. All the measurement sites were naturally ventilated and were occupied during the campaigns by permanent residents or for certain time periods by the technical staff responsible for the instrumentation. Outdoor particle number (PN) concentrations presented the higher values in Milan and Athens (median values 1.4 × 10 4 # cm -3 and 2.9 × 10 4 # cm -3 respectively) as a result of elevated outdoor emissions and led to correspondingly higher indoor values compared to Oslo and Prague. In absence of indoor activities, the indoor concentrations followed the fluctuations of the outdoor concentrations in all the measurement sites. Indoor activities (cooking, smoking, etc.) resulted in elevated indoor PN concentrations (maximum values ranging between 1.7 × 10 5 # cm -3 and 3.2 × 10 5 # cm -3 ) and to I/O ratios higher than one. The I/O ratios were size dependant and for periods without indoor activities, they presented the lowest values for particles < 50 nm (0.51 ± 0.15) and the ratios increased with fine particle size (0.79 ± 0.12 for particles between 100-200 nm). The analysis of the modal structure showed that the indoor aerosol size distribution characteristics differ from the outdoors under the effect of indoor sources. The percentage of unimodal size distributions increased during indoor emissions, compared to periods without indoor sources, along with the number concentration of Aitken mode particles, indicating emissions in specific size ranges according to the type of the indoor source.

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“…In the modern world, most people spend 90% of their time living indoors [2]. Indoor sources like cooking, charcoal burning, incense, smoking, household cleaners and candle burning contribute to significant amounts of indoor air pollution [3,4]. The U.S. EPA (United States Environmental Protection Agency) states that many pollutants in an indoor environment can be 2-5 times and occasionally more than 100 times higher than ambient levels [2], so people upon exposure to this kind of pollution are prone to various health risks.…”

Section: Introductionmentioning

confidence: 99%

Particulate Matter and Carbon Monoxide Emission Factors from Incense Burning

Jilla¹,

Kura²

2017

Environ Pollut Climate Change

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Characterization of particulate matter concentrations during controlled indoor activities

Cited by 114 publications

References 41 publications

Modeling of the aerosol infiltration characteristics in a cultural heritage building: The Baroque Library Hall in Prague

Modeling of the aerosol infiltration characteristics in a cultural heritage building: The Baroque Library Hall in Prague

Number Concentrations and Modal Structure of Indoor/Outdoor Fine Particles in Four European Cities

Particulate Matter and Carbon Monoxide Emission Factors from Incense Burning

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