Skip to main content

Table 2 Correlation coefficient matrix of the exposure variables (Pearson)

From: Ozone is associated with cardiopulmonary and stroke emergency hospital visits in Reykjavík, Iceland 2003–2009

 

O3 a

PM10

NO2

Temperature

Relative humidity

O 3 a

1

0.03

−0.47#

−0.03

−0.12#

PM 10

 

1

0.16#

−0.26#

−0.32#

NO 2

  

1

−0.43#

0.07#

Temperature

   

1

0.11#

Relative humidity

    

1

  1. a Maximum daily 8-hour mean, daily 24-hour mean for other exposure variables.
  2. P <0.001:#.
Back to article page

Environmental Health

ISSN: 1476-069X