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Table 1 Meteorological and ambient air pollution index (n = 365) in Guangzhou, China in 2007

From: Effects of air pollution on neonatal prematurity in guangzhou of china: a time-series study

Index

Mean

SD

P0

P25

P50

P75

P100

P75-P25

Temperature (°C)

23.87

5.76

8.00

19.60

24.50

28.77

32.65

9.17

Relative humidity (%)

67.55

10.26

40.00

62.50

67.50

75.00

88.00

12.50

NO2(μg/m3)

61.04

63.80

15.22

26.55

38.11

59.89

467.89

33.33

PM10(μg/m3)

82.51

52.71

19.67

49.22

69.78

94.44

405.28

45.22

SO2(μg/m3)

51.67

34.84

8.67

28.89

43.67

63.44

194.94

34.56