Skip to main content

Table 1 Air pollution in Iceland’s capital area before and during the Holuhraun eruption

From: Severe volcanic SO2 exposure and respiratory morbidity in the Icelandic population – a register study

  Before eruption
2010-01-01 - 2014-08-30
1703 days
During eruption
2014-08-31 - 2014-12-31
123 days
 
Pollutant Mean (SD) Range Days with missing data Mean (SD) Range Days with missing data p*
SO2 1.4 (1.1) 0.0–20.6 20 35.7 (71.2) 1.3–418.0 0 < 0.001
PM10 20.3 (18.2) 3.8–315.4 19 17.8 (9.1) 5.7–71.5 13 0.010
NO2 15.8 (11.3) 0.0–75.9 54 12.0 (8.2) 0.4–41.0 0 < 0.001
  1. *from a t-test of means. SD Standard deviation