NO2 hours (last 7 days)

This dataset contains the hourly averages (in micrograms per cubic meter, µg/m³) of nitrogen dioxide (NO2) measured by the experimental units of the European AIR-BREAK project. These are uncertified control units (the official and validated data remain those of the 2 ARPAE stations). Nitrogen dioxide is a gas with a strong, pungent, irritating and yellow-red color. Nitrogen dioxide can cause respiratory dysfunction and bronchial reactivity (mucosal irritations) and an increased risk of tumors. — The individual measurements are made via an electrochemical cell (with a frequency of 5 seconds) and are transmitted via the internet to a first server for automatic checks and verifications. From here, with hourly frequency, the average hourly values are acquired by the IoT server of the Municipality of Ferrara, which stores them in a special report database (based on PostgreSQL platform). The hour values of the last week are then transformed into geographical datasets: for each control unit (represented geographically by its spot location) there are 168 hourly values corresponding to the last 7 days; this dataset is automatically updated every hour.