rather than towards you.In
calm/light wind (<5 m/s) gas can accumulate in the valleys, then circulation
is controlled by the landscape and gas can exceed danger levels far
up the
slopes, all around the eruption site. In such cases, spectators need to move
up
to higher ground levels such as mountains and ridges and not stay on the slopes
just above the eruption. Choose
a walking route according
/volcanoes/fagradalsfjall-eruption/volcanic-gases/