Latest hourly air quality measurements (NO2, PM10, PM2.5, ozone) from about 3,000 official monitoring stations in Europe (European Environment Agency, up-to-date unvalidated data, refreshed hourly): nearest stations to a location, or all stations of a country, with station type (traffic, background, industrial), area, value, unit and measurement hour. Use it for health, travel and environment questions. EEA, CC BY 4.0.

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