The air quality portal displays real-time measured concentrations of ambient air pollutants and modelled air quality levels in major cities. The parameters measured in real time are indicative and may be specified after data validation and periodic calibration of monitoring equipment. During the vegetation period (March-October), the portal displays the levels of allergenic pollen measured as part of the pollen monitoring.
In addition to the concentration of the pollutant, the measured levels are characterized on a five-point scale - very good, good, average, bad and very bad. The level of air quality at the monitoring station is determined by the content of the highest level of pollutant.
Data from the last year can be downloaded from the portal. For previous data, please contact the Estonian Environmental Research Center: www.klab.ee