The level of sulfur dioxide (SO2) gas emitted by the eruption in Holuhraun reached 4,800 mµ/m3 in Húsavík, Northeast Iceland, at noon today. People in the area were alerted by mobile text message, mbl.is reports.
The pollution level has since dropped below 2,000 mµ/m3.
At SO2 levels above 2,000 mµ/m3, authorities advise everyone to stay inside, close the windows and turn up the heat the keep the gas out. Further information can be found in English on the website of the Environment Agency of Iceland (below the table).
The air quality was poor in Reykjavík this morning, approaching 2,000 mµ/m3, but has since improved.
Go to airquality.is to check the pollution levels in different locations in Iceland at any given time and to vedur.is for pollution forecasts. Tomorrow, mostly Northeast and East Iceland are expected to be affected by the eruption pollution.