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Table 2 Exposure to air pollutants and meteorological indexes during the study period

From: Impacts of ambient air pollution on glucose metabolism in Korean adults: a Korea National Health and Nutrition Examination Survey study

  Mean SD Min Percentile Max IQR
25th 50th 75th
Daily exposures
PM10 (μg/m3) 42.1 22.0 3.6 27.2 37.0 50.7 152.9 23.5
PM2.5 (μg/m3) 32.1 17.7 2.8 19.8 28.4 39.2 147.8 19.4
NO2 (ppb) 23.5 13.7 0.8 13.8 20.4 30.5 76.2 16.7
Temperature (°C) 9.8 10.5 −19.5 1.3 9.8 19.7 28.8 18.3
Humidity (%) 58.0 18.5 12.3 44.4 57.7 73.1 95.1 28.7