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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
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Environmental Health

ISSN: 1476-069X