Table 1 Distribution of PM mass and metals contained in PM* among study subjects (N = 63)
From: Ambient PM exposure and DNA methylation in tumor suppressor genes: a cross-sectional study
Exposure (μg/m3) | N | Mean (SD) | Min | Percentile | Max | |||
|---|---|---|---|---|---|---|---|---|
| Â | Â | Â | Â | Â | 25 th | 50 th | 75 th | Â |
PM 10 | 63 | 233.42 | (214.56) | 73.72 | 152.23 | 179.45 | 222.86 | 1220.17 |
PM 1 | 63 | 8.48 | (6.18) | 1.71 | 3.51 | 9.01 | 11.35 | 30.49 |
Aluminum | 63 | 8.50 | (18.07) | 0.40 | 1.48 | 2.05 | 7.41 | 84.07 |
Manganese | 63 | 11.26 | (30.41) | 0.11 | 1.20 | 4.63 | 10.77 | 174.79 |
Nickel | 63 | 0.30 | (0.18) | 0.02 | 0.23 | 0.25 | 0.46 | 0.72 |
Zinc | 63 | 18.85 | (26.37) | 0.26 | 1.47 | 8.45 | 32.28 | 129.06 |
Arsenic | 63 | 0.10 | (0.1) | 0.01 | 0.02 | 0.07 | 0.17 | 0.31 |
Lead | 63 | 7.53 | (17.46) | 0.13 | 0.63 | 2.87 | 9.52 | 99.90 |
Iron | 63 | 32.02 | (22.08) | 0.96 | 18.00 | 25.64 | 48.69 | 88.43 |