High concentration of SO2 was measured at Reyðarfjordur in the eastern fjords today and peaked at 14:00H measuring the air quality at 2600 µg/m3. Measurement were showing decreasing concentration at 1500. It is uncertain how the situation will develop. Members in sensitive groups, including healthy individuals with mild asthma, may experience health effects. They may be affected at lower levels than general public. Toward the upper end of this range, most asthmatics who are active outdoors are likely to experience some breathing difficulties.