Table 1 Time-weighted average levels of exposure to airborne particulate matter and metals among foundry workers in an electric steel plant.
From: Airborne particulate matter and mitochondrial damage: a cross-sectional study
Pollutant (μg/m3) | Mean | SD | Minimum |  | Percentile |  | Maximum |
|---|---|---|---|---|---|---|---|
| Â | Â | Â | Â | 25 th | 50 th | 75 th | Â |
PM10 | 233.42 | 215.00 | 73.40 | 152 | 179.44 | 223.00 | 1220.17 |
PM1 | 8.48 | 6.18 | 1.71 | 3.51 | 9.01 | 11.35 | 30.49 |
Coarse | 224.94 | 208.99 | 71.51 | 148.60 | 170.13 | 211.03 | 1189.68 |
Chromium* | 0.09 | 0.03 | 0.02 | 0.08 | 0.09 | 0.10 | 0.20 |
Lead* | 6.98 | 6.63 | 0.52 | 1.40 | 4.22 | 16.11 | 18.00 |
Arsenic* | 0.18 | 0.21 | 0.005 | 0.016 | 0.072 | 0.500 | 0.500 |
Nickel* | 0.43 | 0.26 | 0.10 | 0.24 | 0.34 | 0.62 | 0.90 |
Manganese* | 38.78 | 98.86 | 0.30 | 1.33 | 9.12 | 30.00 | 684.00 |