The maps were derived for 2007, 2008 and 2010 primarily from Airbase background station monitoring data, few EMEP station monitoring data, supplemented with altitude, meteorological ECMWF data and EMEP concentration modelling data. The dataset has been reorganised in order to improve data harmonization among years and to facilitate storage and processing of the interpolated maps for the EEA data services.
Help it consume less energy by keeping it full. It requires less energy to cool a full freezer than an empty one. Should you not have filled it, add some plastic bottles filled with water or even old newspapers – until you need the space!
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