Eurocontrol’s statistics service, STATFOR, has published an assessment of the impact of volcanic ash on air traffic.|| It considers the impact in terms of numbers of flights, with the principal aim of helping those who will analyse traffic statistics and their trends in the coming months and years. Over the main period of the crisis (15th -22nd April), airspace closures in Europe resulting from the eruption of the Eyjafjallajökull volcano led to the disruption of over 100,000 flights and 10 million passenger journeys.

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