Table 1.
Elemental Concentrations (ng/m3) of Ambient Air or Concentrated Particles During the Exposure
| Ambient Air |
Exposure to PM2.5 |
|||
|---|---|---|---|---|
| Mean | SD | Mean | SD | |
| S | 512.7 | 154.9 | 4658.8 | 1655.3 |
| Na | 149.9 | 27.1 | 990.0 | 227.4 |
| Fe | 79.3 | 25.8 | 932.3 | 404.0 |
| Si | 31.6 | 45.8 | 755.6 | 745.1 |
| Ca | 56.8 | 21.4 | 683.0 | 220.8 |
| Mg | 36.7 | 5.6 | 280.6 | 88.6 |
| K | 25.2 | 8.4 | 245.5 | 92.6 |
| Al | 8.9 | 16.4 | 220.7 | 339.3 |
| Zn | 25.8 | 11.0 | 173.2 | 78.9 |
| U | 12.0 | 18.6 | 110.1 | 150.2 |
| Br | 10.0 | 3.4 | 84.6 | 27.2 |
| Ba | 5.0 | 3.7 | 62.3 | 32.7 |
| Ti | 5.3 | 2.4 | 53.1 | 31.1 |
| Cu | 7.8 | 16.2 | 42.5 | 13.5 |
| Lu | 4.0 | 3.7 | 30.7 | 13.1 |
| Mn | 2.5 | 1.1 | 27.2 | 16.8 |
| P | 1.6 | 1.0 | 26.2 | 12.9 |
| Er | 2.0 | 0.9 | 22.7 | 10.4 |
| Te | 4.0 | 7.1 | 21.2 | 30.0 |
| Sb | 3.0 | 4.4 | 18.5 | 22.9 |
| Ni | 2.9 | 7.5 | 15.6 | 11.2 |
| Sr | 2.0 | 0.2 | 15.4 | 2.2 |
| Pb | 2.0 | 0.9 | 13.8 | 6.6 |
| W | 2.0 | 1.1 | 13.3 | 5.4 |
| Sn | 3.0 | 3.4 | 9.8 | 10.8 |
| Cr | 0.7 | 0.4 | 8.5 | 2.6 |
| V | 0.7 | 1.5 | 6.6 | 18.7 |
| In | 1.0 | 2.0 | 6.3 | 7.7 |
| As | 1.0 | 0.4 | 5.0 | 3.8 |