Lung-depositing surface area (LDSA) of particles in office spaces around Europe: Size distributions, I/O-ratios and infiltration

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F23%3A00581421" target="_blank" >RIV/67985858:_____/23:00581421 - isvavai.cz</a>

Alternative codes found

RIV/68378041:_____/23:00581421 RIV/60460709:41310/23:97954 RIV/46747885:24220/23:00011811

Result on the web

<a href="https://hdl.handle.net/11104/0349686" target="_blank" >https://hdl.handle.net/11104/0349686</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.buildenv.2023.110999" target="_blank" >10.1016/j.buildenv.2023.110999</a>

Result language

angličtina

Original language name

Lung-depositing surface area (LDSA) of particles in office spaces around Europe: Size distributions, I/O-ratios and infiltration

Original language description

Air pollution, and specifically particulate matter pollution, is one of the greatest dangers to human health. Outdoor air pollution ranks third in causes for premature death. Improving indoor air quality is of immense importance, as the time spent indoors is often much greater than the time spent outdoors. In this experimental study, we evaluate the levels of particle pollution in indoor air in four offices across Europe, compare the indoor particles to outdoor particles and assess where the particles originate from. The measurements were conducted with an Electrical Low-Pressure Impactor (ELPI+) for particles between 6 nm and 1 jim. The chosen metric, lungdeposited particle surface area (LDSA), targets the health impacts of particle pollution. Based on the measurements, we determined that most of the indoor air particles infiltrated from outdoor air, although two of the offices had very limited indoor activity during the measurement campaigns and may not represent typical use. The highest median indoor LDSA concentration during daytime hours was 27.2 jim2/cm3, whereas the lowest was 2.8 jim2/cm3. Indoor air in general had lower LDSA concentrations than outdoor air, the corresponding outdoor LDSA concentrations being 35.8 jim2/cm3 and 9.8 jim2/cm3. The particle size ranges which contributed to the highest concentrations were 50-100 nm and 300-500 nm. These size ranges correspond to soot mode and accumulation mode particles, which represent local and regional sources, respectively. Based on this study, limiting particle infiltration is the key factor in keeping indoor air in offices free of lung-depositing particles.

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

10511 - Environmental sciences (social aspects to be 5.7)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Building and Environment

ISSN

0360-1323

e-ISSN

1873-684X

Volume of the periodical

246

Issue of the periodical within the volume

DEC 1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

110999

UT code for WoS article

001109351000001

EID of the result in the Scopus database

2-s2.0-85175737943