All Clear!

Concentration Charts show Ash cloud out of EU airspace

These charts supplement the London Volcanic Ash Advisory graphics (VAG) and advisories (VAA). They are to be used with caution. The outer edge of the low concentration zones (indicated as cyan) on these charts represent the standard threshold (200 micrograms of ash per cubic metre) as used in the VAG and VAA  more


nickgarrett

Artist Signman Teacher ngsfwt@outlook.com

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