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Titre : | Evaluation & evolution of air quality |
Auteurs : | Matthieu De Groote, Auteur ; Eoin McGillycuddy, Promoteur ; Mehael Fennelly, Promoteur |
Type de document : | Travail de fin d'études |
Editeur : | Woluwe-Saint-Lambert : Haute École Léonard de Vinci, 2023 |
Langues: | Anglais |
Index. décimale : | TFE - Chimie |
Mots-clés: | Qualité de lair ; polluants ; Google ; Aclima ; Ville de Dublin ; IQAir Airvisual Pro ; WIBS ; Vaisseau de recherche Tom Crean ; Baie de Dublin |
Résumé : |
Clean air is considered fundamental to human health and well-being, but 99% of the world's population breathes air that exceeds WHO guidelines and contains high levels of pollutants, with a growing impact on human health. An estimated seven million people die each year as a direct result of poor air quality, and the estimates are rising.
Google, the air quality measurement company Aclima and the Dublin City Council collaborated to collect 75,452,145 meteorological and pollutant concentration data from 30,000 km of Dublin streets over 16 months. This data was analysed by around 120 engineers, computer scientists and chemists during the three-day Air Quality Data Hack event before further RStudio analysis in this diploma work. A collaboration between Technological University Dublin and the Foras na Mara Marine Institute was also set up. This involved placing four IQAir Airvisual Pro devices, which measure real-time concentrations of various pollutants, and the Waveband Integrated Bioaerosol Sensors (WIBS) device, which measures the biological and non-biological nature of particles in the air, on the marine's research vessel Tom Crean. This has resulted in the recovery of 4,481,435 indoor air quality data from Dublin Bay to be analysed to complement the Google Event data. It was found that the concentration of CO2 correlates very well with those of the other primary polluting gases (CO, NO, NO2, which have probably followed a similar increase as CO2 since the industrial revolution. The measurement of the CO2 therefore makes it possible to prevent high concentrations of many gases in a simple and inexpensive way. This also highlighted daily concentrations of fine particles in Dublin that are too high compared to the WHO limit. This is particularly the case at the dangerous daily peaks occurring between 18:00 and 18:30. However, no close correlation was found with concentrations of fine particles, which are the major cause of air quality related mortality and therefore need to be measured directly in order to avoid the dramatic consequences of high concentrations of fine particles. In contrast, the concentration limits for fine particles are much better respected in Dublin Bay where the average levels of fine particles recorded are overwhelmingly below the WHO average in the different rooms. The difference with Aclima's Google Street View electric measurements is that it shows very clearly the direct effects of the city's activity on the increase of air pollution. |
Accès : | Identifiez-vous avant d'accéder au document électronique |
Disponible en ligne : | Oui |
Lieu du stage : | Technological University Dublin, Grangegorman campus |
Département : | Chimie |
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TFE - Chimie Adobe Acrobat PDF |