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E. Cetintas, L. Sampaio Cordeiro Wagner, A. Kasper-Giebl:
"Indoor air concentrations of particulate matter in different environments in Vienna, Austria";
Poster: 3rd Workplace and Indoor Aerosol Conference AEROSOLS 2014, Wroclaw, Poland; 13.05.2014 - 16.05.2014.

To quantify the PM concentrations in environments
where the personal exposure is high for young people, sev-
eral measurements were carried out throughout the Vienna
public transportation, schools and public locations such as
restaurants, cafes, etc. The DustTrak II was used for these
measurements.
The DustTrakTMII Aerosol Monitor 8534 is a handheld
battery-operated, data-logging, light-scattering laser pho-
tometer. It measures aerosol concentrations corresponding
to PM1, PM2.5, Respirable, or PM10 size fractions.
Initially PM concentrations were measured within a
close radius to ambient air monitoring sites in Vienna in
order to calibrate the DustTrak II. As a result a calibra-
tion factor was obtained which enabled comparibilty with
the data from Vienna ambient air monitoring network and
implemented throughout the rest of the campaign.
In order to obtain a better perspective on the pub-
lic transportation, measurements were taken in open and
closed underground stations, both in new as well as old
trains. A limited number of measurements were taken in
trams and buses as well.
The school measurements were conducted in two schools
in Vienna with slightly di erent surroundings, an urban and
a suburban site.
Further measurements were taken in housholds during
di erent times of the day as well as during di erent activi-
ties.
As expected, measurements at open stations delivered
PM concentrations well comparable to data of the Vienna
ambient air monitoring network. The measurements in sub-
way stations in the underground have higher deviations and
the avarage concentration is almost twice as much as at the
open and semi-open subway stations. Slightly lower con-
centrations were determined within the trains, with avarage
values being higher in the older trains without aircondition-
ing.
The results of the measurements at the schools were eval-
uated to capture the signi cant di erences of air quality in
dependence of ventilation, motion factor and location of the
classrooms. Observations on di erent types of classrooms
were also undertaken.(Eg. Gym-Halls, IT-Labs, etc.)
PM concentrations on the neighbouring streets and local
ambient air monitoring site reports were compared with the
measured results in the classrooms with open and closed
windows as well as in corridors during the breaks and
lessons. Avarage concentrations in corridors and classrooms
are up to 40% higher during breaks when pupils are moving
around than compared to lessons. Pronounced di erences
could also be observed when measurements with open and
closed windows were compared. It has to be noted that on
the days of the measurements, daily PM concentrations in
the ambient were below 30ug/m3.
In public locations such as restaurants and cafes, compar-
ison between smoking and non-smoking areas did not only
show di erences in PM concentrations but also in their size
distributions.

particulate matter, PM, personal exposure, public transportation, school environment, restaurants, cafes, houses