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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F17%3A00469251" target="_blank" >RIV/67985858:_____/17:00469251 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.4209/aaqr.2015.04.0267" target="_blank" >http://dx.doi.org/10.4209/aaqr.2015.04.0267</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4209/aaqr.2015.04.0267" target="_blank" >10.4209/aaqr.2015.04.0267</a>

Result language

angličtina

Original language name

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

Original language description

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 1.4×104 #/cm3and 2.9×104 #/cm3 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 1.7×105 #/cm3 and 3.2×105 #/cm3) 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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10509 - Meteorology and atmospheric sciences

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Aerosol and Air Quality Research

ISSN

1680-8584

e-ISSN

—

Volume of the periodical

17

Issue of the periodical within the volume

1

Country of publishing house

TW - TAIWAN (PROVINCE OF CHINA)

Number of pages

16

Pages from-to

131-146

UT code for WoS article

000392311500012

EID of the result in the Scopus database

2-s2.0-85008198021