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Table 2 Summary statistics of PM2.5 levels and meteorological data by exposure period

From: The association between ambient temperature and sperm quality in Wuhan, China

 Mean ± SDminP25P50P75max
PM2.5 (μg/m3)
 0–982.17 ± 39.9726.1754.1174.1796.92206.52
 10–1482.68 ± 43.9124.2252.3472.3299.16269.00
 15–6985.94 ± 38.1632.1357.4077.88103.79178.81
 70–9093.91 ± 44.4029.8656.6987.42117.10214.45
 0–9087.19 ± 34.7037.2661.0878.09110.21161.53
Relative humidity (%)
 0–978.27 ± 6.1856.9074.5078.8082.9090.00
 10–1478.18 ± 7.4454.4073.0078.6083.8093.20
 15–6977.69 ± 3.3069.4074.9378.0079.8585.38
 70–9078.22 ± 4.8861.9075.0878.9581.6988.57
 0–9078.12 ± 2.4573.7076.2477.6479.7484.10
Mean temperature (°C)
 0–917.50 ± 8.600.549.4918.7324.7632.57
 10–1417.41 ± 8.67−0.2010.0918.7124.6132.94
 15–6917.47 ± 7.954.0310.4018.5124.2830.94
 70–9016.27 ± 8.702.597.8516.5924.0132.26
 0–9016.87 ± 7.554.809.8717.1523.8229.22
  1. Abbreviations: min minimum, P25: 25th percentile, P50: median, P75: 75th percentile, max maximum, SD standard deviation, PM2.5 particulate matter ≤2.5 μm in aerodynamic diameter