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| Titel |
Urban air quality measurements using a sensor-based system |
| VerfasserIn |
Mila Ródenas, Daniel Hernández, Tatiana Gómez, Ramon Lopez, Amalia Muñoz |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250146806
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| Publikation (Nr.) |
 EGU/EGU2017-10850.pdf |
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| Zusammenfassung |
| Air pollution levels in urban areas have increased the interest, not only of the scientific
community but also of the general public, and both at the regional and at the European level.
This interest has run in parallel to the development of miniaturized sensors, which only since
very recently are suitable for air quality measurements. Certainly, their small size and
price allows them to be used as a network of sensors capable of providing high
temporal and spatial frequency measurements to characterize an area or city and with
increasing potential, under certain considerations, as a complement of conventional
methods.
Within the frame of the LIFE PHOTOCITYTEX project (use of photocatalytic textiles to
help reducing air pollution), CEAM has developed a system to measure gaseous compounds
of importance for urban air quality characterization. This system, which allows an
autonomous power supply, uses commercial NO, NO2, O3 and CO2 small sensors and
incorporates measurements of temperature and humidity. A first version, using XBee boards
(Radiofrequency) for communications has been installed in the urban locations defined by the
project (tunnel and school), permitting the long-term air quality characterization of sites in
the presence of the textiles.
An improved second version of the system which also comprises a sensor for measuring
particles and which uses GPRS for communications, has been developed and successfully
installed in the city center of Valencia. Data are sent to a central server where they can be
accessed by citizens in nearly real time and online and, in general, they can be utilized in the
air quality characterization, for decision-making related to decontamination (traffic
regulation, photocatalytic materials, etc.), in air quality models or in mobile applications of
interest for the citizens.
Within this work, temporal trends obtained with this system in different urban locations
will be shown, discussing the impact of the characteristics of the selected sites and the
seasonal variability on the air quality levels observed.
Acknowledgements
EUPHORE staff is acknowledged. PHOTOCITYTEX project (LIFE13 ENV/ES/000603)
is acknowledged for supporting this work. Fundación CEAM is partly supported by
Generalitat Valenciana – Spain. |
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