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Table 2 Descriptive statistics on meteorological and air pollution conditions, Brussels-Capital Region, 2008–2013

From: Relationships between aeroallergen levels and hospital admissions for asthma in the Brussels-Capital Region: a daily time series analysis

Variables

Mean

S.D.

Min

P25

P50

P75

P85

Max

Mean temperature (°C)

10.7

6.6

−9.2

6.1

11.0

15.8

17.6

28.1

Relative humidity (%)

77.8

12.2

36

69

80

87

91

99

PM2.5 (μg/m3)

19.0

12.5

3.9

10.6

15.5

23.4

30.1

96.5

PM10 (μg/m3)

25.6

14.4

7.7

15.7

21.5

31.4

38.8

118.4

O3 (μg/m3)

36.0

19.6

1.9

21.1

36.2

49.1

56.4

105.9

NO2 (μg/m3)

34.3

13.8

8.0

23.8

32.2

42.9

48.8

115.3

  1. Note: Air pollution concentrations expressed as spatial and population weighted means