Regarding the Jury’s opinion, “Kunak Air is a multi-pollutant solution for monitoring outdoor air quality. Its very professional design provides a large list of measured pollutants (NO2, O3, PM1, PM2.5, and PM10), and weather parameters (temperature, humidity, pressure, and wind). The data quality is excellent for O3, good for PM1 and NO2, average for PM10 and very poor for PM2.5. Its integrated solar panel allows it to run autonomously. Although not cheap, its price is relative competitive for the monitoring category.”
Even though some of the pollutants’ performances were not the best, as it occurred with PM2.5, in general, the accuracy is good (Figure 5) . Regarding the PMs, it is observed how in other studies Kunak Air achieved higher accuracies. Besides, Kunak Air device was provided with NO and CO sensors, even though they could not be tested by the challenge, as well as an anemometer, being the only device in the whole challenge with this instrument, which it is very useful in order to have knowledge of the source of the pollutants. Finally, Kunak Air had the most competitive price, being provided by 4 gas sensors, an OPC, meteorological sensors (temperature, humidity, and pressure) an anemometer, as well as access to the Cloud.