Bars represent average annual concentrations over a limited number of monitoring stations along busy roads in major European cities (Vienna, Bruxelles, Prague, Helsinki, Paris, Berlin, Athens, Krakow, Bratislava, Stockholm and London), error bars represent the highest annual concentration measured at one single monitoring station
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Car-pooling with your colleagues will lessen your impact on the environment, save you money and let you travel in the company of others. Ask which of your colleagues live nearby and take turns driving to work.
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