Rain and no wind equals good air quality in the ash fallout zone on 2010-07-10

Measurements of PM10 at Raufarfell (red lines) and Hvolsvöll (blue line). Also shown wind speed (WS) and relative humidity (RH) at Raufarfell.

Rain in the area on 10 July, and almost no wind.

Therefore, air quality very good. Around 9 micro-g/m3 at Hvolsvöllur and 5 micro-g/m3 at Raufarfell.