High concentration of particulate matter due to sandstorms

The concentration of particulate matter in the capital region is high due to sandblasting from the sands of South Iceland.

The meters in Hafnarfjörður are on Norðurhellu and Hvaleyrarhóll. 

At midday today, the hourly particulate matter concentration at Norðurhellu was 132.4 micrograms per cubic metre, but by one o'clock the value was 8.8 micrograms per cubic metre. At the measuring station on Hvaleyrarholti the reading was 5.2 micrograms per cubic metre at midday. The 24-hour health protection limit for particulate matter is 50 micrograms per cubic metre. It is not necessary for people to take any action.
special precautions on a day like this when the values are unusually high. However, those who are sensitive are advised to avoid
It's very strenuous outdoors, and today isn't necessarily the best day for a run outside. 

The concentration of particulate matter and other pollutants can be monitored on Air quality.is. There you can see a map of measurement sites in Hafnarfjörður and elsewhere in the country.