  Monitoring noise pollution in urban areas in a more systematic manner has
been gaining traction as a theme among the research community, especially with
the rise of smart cities and the IoT. However, although it affects our everyday
life in a profound way, monitoring indoor noise levels inside workplaces and
public buildings has so far grabbed less of our attention. In this work, we
report on noise levels data produced by an IoT infrastructure installed inside
5 school buildings in Greece. Our results indicate that such data can help to
produce a more accurate picture of the conditions that students and educators
experience every day, and also provide useful insights in terms of health risks
and aural comfort.
