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Table 2 Description of daily air pollutant concentrations, temperature and relative humidity in the included Shandong counties

From: Urban–rural disparities in the association of nitrogen dioxide exposure with cardiovascular disease risk in China: effect size and economic burden

 

Mean (SD)

Median (P25, P75)

NO2 (μg/m3)

  

    Total

36.12 (15.97)

33.39 (24.61, 45.00)

    Urban

37.20 (16.36)

34.31 (25.25, 46.21)

    Rural

35.14 (15.40)

32.57 (24.12, 43.75)

PM2.5 (μg/m3)

  

    Total

63.31 (39.83)

53.47 (36.77, 77.93)

    Urban

64.58 (41.24)

54.31 (37.26, 79.52)

    Rural

62.47 (38.44)

53.03 (36.71, 76.87)

PM10 (μg/m3)

  

    Total

112.27 (57.95)

101.72 (72.05, 137.38)

    Urban

115.23 (60.42)

103.84 (73.51, 141.51)

    Rural

109.99 (55.33)

100.30 (71.15, 134.49)

CO (μg/m3)

  

    Total

1.19 (0.59)

1.09 (0.81, 1.43)

    Urban

1.21 (0.62)

1.10 (0.81, 1.45)

    Rural

1.17 (0.56)

1.08 (0.81, 1.40)

O3 (μg/m3)

  

Total

82.52 (99.46)

91.35 (54.91, 132.29)

Urban

81.48 (105.02)

90.50 (53.54, 131.89)

Rural

84.72 (92.30)

92.84 (56.85, 133.19)

SO2 (μg/m3)

  

    Total

33.16 (22.34)

27.62 (16.92, 43.42)

    Urban

33.63 (23.33)

27.58 (16.92, 43.66)

    Rural

33.09 (21.32)

28.08 (17.35, 43.77)

Temperature (°C)

  

    Total

14.83 (10.01)

16.66 (5.6, 23.53)

    Urban

14.87 (10.04)

16.74 (5.61, 23.60)

    Rural

14.83 (9.98)

16.62 (5.65, 23.50)

Relative humidity (%)

  

    Total

65.83 (16.24)

66.84 (53.41, 79.02)

    Urban

65.71 (16.29)

66.72 (53.24, 79.11)

    Rural

66.12 (16.14)

67.14 (53.87, 79.12)

  1. Abbreviations: NO2 nitrogen dioxide, PM2.5 particulate matter with an aerodynamic diameter of 2.5 μm or less, PM10 particulate matter with an aerodynamic diameter of 10 μm or less, CO carbon monoxide, O3 ozone, SO2 sulfur dioxide, SD standard deviation, P25 25th percentile, P75 75th percentile