Eruption ash

This image, from 11:35 on 20100415 shows clearly the ash plume reaching south Norway and almost Scotland.

Same figure, just in false colors.

Samples of the ash collected by Sigurður Reynir Gíslason, east of the eruption site at 11:30 today have been analyzed for grain size at Nýsköpunarmiðstöð at the request of Umhverfisstofnun.

It turns out that the grains are very small, all in the sample were smaller than 300 mm, and 23.4% were smaller than 10 mm, and 7.6% smaller than 2.6 mm. So, very fine grained !

It was also found that there was a lot of fluoride attached to the surface of the ash particles. This makes for rather hazardous material, and effort should be taken not to inhale more than absolutely necessary.