Several Libelium air quiality sensors calibrated with the reference stations have been installed in specific locations depending on the density of inhabitants, outdoor activities and especially vulnerable areas such as hospitals, schools or parks.
City Council hired a local company, Integra to install Libelium Meshlium Scanners at access points of the Luis Buñuel Water Park in Zaragoza, Spain. The scanners detect the entrance and exit of people and vehicles to the park as well as the time of stay.
City of Messina has a project, MeSm@RT, that helps to create a portal dedicated to environmental and land monitoring with the use of results by citizens in various forms. It uses Libelium sensors along with geographic information and other public data sources.
The city of Cuenca in Ecuador uses Libelium technology to reduce noise pollution levels. The installation of seven Plug & Sense! Smart Cities PRO with Noise Level Sensor allows the creation of a noise map with the highest sound pressure level.