Table 2 Meteorological conditions in Chapel Hill during the study time.

From: Heterogeneous ozone effects on the DNA methylome of bronchial cells observed in a crossover study

 

Min

25th percentile

Mean

Median

75th percentile

Max

Ozone (ppm)

0.002

0.019

0.026

0.025

0.033

0.063

PM2.5 (µg/m3)

1.0

7.8

10.9

9.9

13.2

28.2

Temperature (°C)

− 7.6

7.3

15.1

15.6

23.3

32.8

Relative humidity (%)

26.5

57.9

67.9

70.0

78.4

96.3

Barometric pressure (hPa)

1,001.4

1,014.0

1,018.2

1,018.0

1,021.9

1,036.4