This VLOPS map shows the modelled concentration of ammonia (NH3) in the air (in µg/m³) for all Flanders at 1x1 km². This map was calculated using VLOPS20 (based on OPS4.5.2), the emission figures for NH3 in 2017 and the 2017 meteorological data. For this map, the raw VLOPS model output was multiplied by the calibration factor x0.87.
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