Distribution of rural stations by thresholds of AOT40 concentrations measured in stations for the year 2011. AOT40 concentrations for the protection of vegetation is the accumulated dose of hourly concentrations of O3 over a threshold of 40 ppb, equivalent to 80 μg/m3, accumulated over three month (May to July).
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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