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Table 2 Average annual concentration of air pollutants and meteorological exposure during follow-up

From: Association between annual concentration of air pollutants and incidence of metabolic syndrome among Korean adults: Korean Genome and Epidemiology Study (KoGES)

Exposure

Mean ± SD

Median

Minimum

Maximum

IQR

PM2.5 (µ/m3)

26.86 ± 2.74

26.59

17.91

35.67

3.48

SO2 (ppb)

4.37 ± 0.94

4.30

2.34

8.75

1.17

NO2 (ppb)

15.30 ± 5.31

15.05

4.98

36.77

8.87

CO (ppb)

487.86 ± 98.22

468.00

288.35

725.73

172.71

O3 (ppb)

25.39 ± 2.167

25.09

18.04

37.36

2.65

Temperature (℃)

10.65 ± 1.48

10.75

6.50

13.64

2.28

Humidity (%)

71.97 ± 1.34

71.99

61.70

76.72

1.62

  1. Abbreviations: SD, Standard deviation; IQR, Interquartile range; PM2.5, particulate matter with aerodynamic diameters ≤ 2.5 μm; SO2, sulfur dioxide; NO2, nitrogen dioxide; CO, carbon monoxide; O3, ozone; ppb, parts per billion
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Environmental Health

ISSN: 1476-069X