Monitorització avançada de la qualitat de l’aire per a BSC – ASCENDER

Map of Barcelona’s L’Eixample district showing various air quality monitoring points

4sfera col·labora amb el Barcelona Supercomputing Center (BSC-CNS), oferint i desplegant un sistema integrat de monitoratge de la qualitat de l’aire a la proximitat de l’estació oficial de monitoratge a l’Eixample (districte de Barcelona). Aquest sistema permet la recollida i processament de dades en temps real mitjançant tecnologies de computació al límit (edge) i al núvol, amb l’objectiu de millorar la modelització de la qualitat de l’aire en entorns urbans.

El repte
L’objectiu és avançar cap a una mobilitat urbana sostenible mitjançant la comprensió i mitigació de l’impacte ambiental del transport en entorns urbans complexos. L’Eixample, una de les zones més densament poblades i amb més trànsit de Barcelona, ofereix un escenari ideal per:
• Donar suport a models microscòpics d’emissions per avaluar la contaminació a nivell de carrer segons les condicions de trànsit en temps real.
• Millorar els models macroscòpics de qualitat de l’aire, incorporant esdeveniments dinàmics de trànsit i el seu impacte en els nivells de contaminació.
• Capturar dades d’alta resolució sobre la qualitat de l’aire per informar polítiques de ciutat intel·ligent centrades en una mobilitat neta i sostenible.

Aquestes accions permeten generar dades de qualitat de l’aire en temps real amb alta resolució temporal i espacial, donant suport directe als objectius de mobilitat neta i sostenible del projecte ASCENDER.

La solució
En aquest projecte, som responsables de:
• La instal·lació i calibratge de cinc sensors de qualitat de l’aire dins de l’estació oficial de monitoratge de l’Eixample, ubicats estratègicament per avaluar la influència del trànsit urbà en la contaminació.
• La connexió de la xarxa de sensors a plataformes de edge computing per al processament local i l’anàlisi en temps real, així com la integració amb sistemes al núvol per alimentar models de qualitat de l’aire a gran escala.
• La realització de campanyes de mostreig passiu de NO₂ en 40 punts al voltant de l’estació de monitoratge oficial de l’Eixample. Aquestes campanyes proporcionen dades espacials detallades per validar les mesures dels sensors i millorar la precisió dels models.

El resultat
• Millora de la disponibilitat de dades per donar suport als models microscòpics i macroscòpics de qualitat de l’aire, ajudant a estimar els nivells de contaminació segons patrons i esdeveniments específics de trànsit.
• Contribució a l’objectiu d’ASCENDER de construir bessons digitals d’entorns urbans i promoure estratègies basades en dades per a ciutats més netes i saludables.

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