Mapped: Europe’s Pollution Problem 

The Volkswagen emissions-testing scandal has put renewed focus on traffic pollution in European cities. Check nitrogen dioxide levels across Europe.

Air pollution in many European cities has fallen thanks to stricter environmental rules over the past decade. But cities still contend with unhealthy levels of nitrogen oxides, or NOx, a cocktail of pollutants produced in large quantities by diesel-powered vehicles. Nitrogen dioxide, or NO2, the most harmful form of NOx, is linked to respiratory irritation, asthma and premature death. In the U.S., where far fewer diesel cars are on the road and testing procedures of NOx emissions are stricter than in the EU, NO2 levels in the biggest cities tend to be half the levels in European cities. For example, in New York the highest annual average reading at a monitoring station was 42 micrograms per cubic meter, while in London, the highest was 85.

Over 4,000 stations across Europe measure levels of NO2 and other pollutants in the air. Enter a location below or pan around the map to view the average, annual NO2concentration for 2013 recorded at each of these stations.

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Source: Mapped: Europe’s Pollution Problem –

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Respro® Masks: Cycle masks, motorcycle masks and allergy masks. External wear for internal protection.
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