The graphs are based on the annual mean concentration values. They present the range of concentrations at all station types (in ng/m3) officially reported by the EU Member States and how the concentrations relate to the target value set by EU legislation (marked by the red line).
The diagram indicates the lowest and highest observations, the means and the lower and upper quartiles. The lower quartile splits the lowest 25 % of the data and the upper quartile splits the highest 25 % of the data.
Based on a minimum of 15 % data coverage.
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a sure way to save water when doing the laundry is to do less of it! Before starting your washing machine, wait for a full load and check your clothes if they really are dirty; one wear does not always qualify them for a wash.
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