Number of exceedances of the threshold value for the information of the public (one-hour ozone concentration &gt; 180 µg/m3) observed at rural and urban background stations, summer 2003 (April - August), interpolated using inverse distance weighting
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Decrease your CO2 emissions and keep your electricity bills low by making the most of natural light. Think about choosing pale-coloured walls, ceilings and floors, as well as mirrors, to reflect the daylight.
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