Skip to main content

Table 3 Pearson correlation coefficients between air pollutants and meteorological parameters measured in Stockholm, Sweden, 1990–2010. Values above diagonal are for 7-day averages and below for 2-day averages

From: Susceptibility to short-term ozone exposure and cardiovascular and respiratory mortality by previous hospitalizations

7-day

O3

PM2.5

PM10

NO2

NOx

Temp

Rh

2-day

O3

1.00

0.26

0.47

−0.34

−0.43

0.50

−0.57

PM2.5

0.24

1.00

0.74

0.26

0.20

0.02

0.02

PM10

0.41

0.74

1.00

0.17

0.09

0.03

−0.23

NO2

− 0.32

0.23

0.23

1.00

0.90

− 0.37

0.09

NOx

−0.40

0.17

0.16

0.88

1.00

−0.34

0.11

Temp

0.47

0.04

0.04

−0.33

− 0.29

1.00

− 0.38

Rh

−0.60

0.04

−0.24

0.18

0.10

−0.38

1.00

  1. O 3 ozone, PM 2.5 mass concentration of particles ≤2.5 μm in aerodynamic diameter, PM 10 mass concentration of particles ≤10 μm in aerodynamic diameter, NO x nitrogen oxides, NO 2 nitrogen dioxide, Temp temperature, Rh relative humidity