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 ± SD | min | P25 | P50 | P75 | max |
|---|---|---|---|---|---|---|
PM2.5 (μg/m3) | ||||||
 0–9 | 82.17 ± 39.97 | 26.17 | 54.11 | 74.17 | 96.92 | 206.52 |
 10–14 | 82.68 ± 43.91 | 24.22 | 52.34 | 72.32 | 99.16 | 269.00 |
 15–69 | 85.94 ± 38.16 | 32.13 | 57.40 | 77.88 | 103.79 | 178.81 |
 70–90 | 93.91 ± 44.40 | 29.86 | 56.69 | 87.42 | 117.10 | 214.45 |
 0–90 | 87.19 ± 34.70 | 37.26 | 61.08 | 78.09 | 110.21 | 161.53 |
Relative humidity (%) | ||||||
 0–9 | 78.27 ± 6.18 | 56.90 | 74.50 | 78.80 | 82.90 | 90.00 |
 10–14 | 78.18 ± 7.44 | 54.40 | 73.00 | 78.60 | 83.80 | 93.20 |
 15–69 | 77.69 ± 3.30 | 69.40 | 74.93 | 78.00 | 79.85 | 85.38 |
 70–90 | 78.22 ± 4.88 | 61.90 | 75.08 | 78.95 | 81.69 | 88.57 |
 0–90 | 78.12 ± 2.45 | 73.70 | 76.24 | 77.64 | 79.74 | 84.10 |
Mean temperature (°C) | ||||||
 0–9 | 17.50 ± 8.60 | 0.54 | 9.49 | 18.73 | 24.76 | 32.57 |
 10–14 | 17.41 ± 8.67 | −0.20 | 10.09 | 18.71 | 24.61 | 32.94 |
 15–69 | 17.47 ± 7.95 | 4.03 | 10.40 | 18.51 | 24.28 | 30.94 |
 70–90 | 16.27 ± 8.70 | 2.59 | 7.85 | 16.59 | 24.01 | 32.26 |
 0–90 | 16.87 ± 7.55 | 4.80 | 9.87 | 17.15 | 23.82 | 29.22 |