During a pilot project in Hamburg-Altona, Breeze Technologies and Microsoft have created the densest air quality monitoring network in the world, based on Breeze’s cloud- and AI-based sensing platform and Microsoft’s Azure Cloud: every 30 seconds, 35 sensors collected data on 14 different hyperlocal air pollution parameters in an area of 14.1 km² and sent it to a central Environmental Intelligence Cloud. It was the aim of the project to demonstrate the capabilities of Breeze’s technology in the context of a metropolis, and to analyse the impact of local traffic patterns and flows on hyperlocal air quality.

The white paper covers the project’s key findings:

1. Cloud-based sensors can be used to monitor air quality in the urban landscape
2. Citizens can be involved in air quality monitoring campaigns
3. Analysing the impact of traffic on air quality requires hyperlocal air quality measurements
4. Clean air actions based on data from dense sensor networks can be more effective