Table 1.
Estimated personal exposure levels to PM and metalsa (n=63)
| Pollutants (μg/m3) | Mean (SD) | Min | 25th percentile | Median | 75th percentile | 90th percentile | Max | |
|---|---|---|---|---|---|---|---|---|
| PM10 | 233.4 | (214.6) | 73.7 | 152.2 | 179.4 | 222.9 | 383.5 | 1220.2 |
| PM1 | 8.5 | (6.2) | 1.7 | 3.5 | 9.0 | 11.4 | 13.3 | 30.5 |
| Aluminium | 8.5 | (18.1) | 0.4 | 1.5 | 2.0 | 7.4 | 13.9 | 84.1 |
| Manganese | 11.3 | (30.4) | 0.1 | 1.2 | 4.6 | 10.8 | 17.0 | 174.8 |
| Nickel | 0.3 | (0.2) | 0.0 | 0.2 | 0.3 | 0.5 | 0.5 | 0.7 |
| Zinc | 18.9 | (26.4) | 0.3 | 1.5 | 8.5 | 32.3 | 36.4 | 129.1 |
| Arsenic | 0.1 | (0.1) | 0.0 | 0.0 | 0.1 | 0.2 | 0.3 | 0.3 |
| Lead | 7.5 | (17.5) | 0.1 | 0.6 | 2.9 | 9.5 | 10.8 | 99.9 |
| Iron | 32.0 | (22.1) | 1.0 | 18.0 | 25.6 | 48.7 | 59.8 | 88.4 |
| Chromium | 0.1 | (0.1) | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.5 |
a
Metals were measured in PM10.