Finally, the IdeenExpo, Europe’s largest youth event for technology and science, is taking place again this year from July 2 to 10. With many exhibits, workshops and stage shows, the various players from science, business and politics want to inspire the youth for modern topics, such as technology and sustainability. As in the years before, the GWDG is represented with its own exhibit at the exhibition area of the Georg-August-Universität Göttingen. We will present the fine dust sensor from a Citizen Science project and show not only how the measurement data is collected, but also how it can be analyzed using modern methods of Data Science and Artificial Intelligence (AI).