The graphs show the percentage frequency distribution of stations (on y-the axis) in the EU Member States versus the various concentration classes (on the x-axis, in µg/m3). Vertical lines correspond to target or limit values set by the EU legislation.
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Walk or cycle to your work as much as it is possible and you’ll set your kids a good example. Encourage them to walk, cycle or take the bus when going to and from school each day! Both their health and the environment will benefit.
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