Table 1.
The concentrations (μg/g) of trace metals in PM (mean ± SD)
| F1 | F2 | F3 | |
|---|---|---|---|
| S | 49,583.9 ± 1112.2 | 50,692.3 ± 5236.4 | 57,164.0 ± 2584.2 |
| K | 11,494.5 ± 371.0 | 10,601.9 ± 226.6 | 9449.2 ± 75.1 |
| Ca | 6307.2 ± 324.3 | 7740.1 ± 580.5 | 16,752.0 ± 1037.5 |
| Ti | 5568.8 ± 384.0 | 2662.4 ± 223.4 | 3377.9 ± 91.9 |
| P | 4301.3 ± 186.9 | 3586.2 ± 246.6 | 3667.0 ± 155.4 |
| Fe | 3870.9 ± 129.7 | 4971.2 ± 360.3 | 9860.8 ± 360.4 |
| Mg | 2337.8 ± 236.1 | 1964.7 ± 249.2 | 4207.8 ± 231.2 |
| Al | 1740.8 ± 20.1 | 2543.4 ± 817.8 | 6317.7 ± 196.1 |
| Zn | 1024.9 ± 52.8 | 1003.0 ± 86.2 | 1450.6 ± 63.7 |
| Mn | 378.7 ± 20.3 | 463.8 ± 17.8 | 535.5 ± 9.4 |
| Ba | 224.3 ± 8.5 | 138.8 ± 53.1 | 276.6 ± 12.2 |
| Pb | 695.4 ± 38.7 | 514.9 ± 123.6 | 549.5 ± 9.4 |
| Cu | 395.6 ± 12.6 | 360.4 ± 134.3 | 1029.4 ± 48.0 |
| Cr | 130.7 ± 14.6 | 116.3 ± 50.6 | 194.2 ± 105.2 |
| Sb | 66.4 ± 2.2 | 53.7 ± 16.5 | 72.3 ± 3.9 |
| Se | 61.3 ± 0.6 | 37.3 ± 5.5 | 33.1 ± 3.0 |
| As | 58.1 ± 1.7 | 48.7 ± 17.2 | 99.6 ± 10.9 |
| Sn | 54.9 ± 2.5 | 40.6 ± 9.9 | 55.1 ± 2.1 |
| Ni | 53.1 ± 5.0 | 34.9 ± 9.8 | 44.8 ± 0.03 |
| Sr | 39.3 ± 1.4 | 44.3 ± 20.8 | 176.0 ± 26.1 |
| Li | 34.0 ± 2.1 | 25.4 ± 1.5 | 19.3 ± 0.8 |
| Rb | 30.2 ± 0.7 | 29.1 ± 11.7 | 37.6 ± 0.8 |
| Mo | 20.2 ± 0.2 | 14.7 ± 4.0 | 30.9 ± 1.0 |
| Cd | 14.8 ± 0.5 | 12.8 ± 4.4 | 21.2 ± 7.0 |
| Co | 13.0 ± 1.1 | 12.3 ± 5.9 | 21.6 ± 3.3 |
| Ce | 9.8 ± 0.5 | 4.6 ± 0.2 | 12.6 ± 0.4 |
| W | 9.4 ± 0.1 | 10.0 ± 4.5 | 18.3 ± 0.6 |
| Cs | 3.6 ± 0.1 | 3.4 ± 1.4 | 4.6 ± 0.1 |
| Ag | 3.0 ± 0.3 | 2.4 ± 0.9 | 4.1 ± 0.3 |
| Pd | 0.9 ± 0.5 | 0.3 ± 0.1 | 0.8 ± 0.2 |
| Gd | 0.6 ± 0.1 | 0.5 ± 0.1 | 1.2 ± 0.1 |
| Th | 0.3 ± 0.1 | 0.2 ± 0.1 | 1.1 ± 0.01 |
| U | 0.1 ± 0.04 | 0.2 ± 0.1 | 0.6 ± 0.1 |
| Pt | 0.1 ± 0.1 | 0 | 0.1 ± 0.01 |
| Eu | 0.1 | 0.04 ± 0.01 | 0.1 |