TABLE 1.
Elemental and Organic Functional Composition of the Different Types of Particles by ICP-MS and Nuclear Magnetic Resonance, Respectively
| Chemical Component | Particle Type |
|||||
|---|---|---|---|---|---|---|
| Soil Dust | Road Dust | Agricultural Dust | Traffic Exhausts | Biomass Burning | Pollen | |
| Fe (mg g−1) | 36.8 | 118.2 | 47.2 | 143.5 | 43.0 | 51.1 |
| Al (mg g−1) | 21.8 | 29.3 | 24.8 | 1.1 | 1.2 | 0.1 |
| K (mg g−1) | 7.3 | 20.0 | 16.8 | 13.4 | 8.5 | 18.0 |
| Mg (mg g−1) | 1.9 | 3.8 | 2.1 | 3.3 | 1.7 | 2.6 |
| Ca (mg g−1) | 0.5 | 4.7 | 0.7 | 6.4 | 2.7 | 1.6 |
| Cu (mg g−1) | 0.2 | 0.5 | 0.2 | 38.4 | 1.4 | 0.1 |
| Cr (mg g−1) | 4.3 | 20.0 | 7.0 | 20.0 | 8.0 | 7.9 |
| Ni (mg g−1) | 2.7 | 13.5 | 4.7 | 13.5 | 7.0 | 4.9 |
| Co (mg g−1) | > 0.1 | 0.2 | > 0.1 | 0.2 | 0.1 | > 0.1 |
| Ba (mg g−1) | 0.3 | 0.6 | 0.5 | 0.6 | > 0.1 | > 0.1 |
| P (mg g−1) | 0.5 | 1.0 | 0.5 | 1.4 | 1.3 | 2.4 |
| V (mg g−1) | > 0.1 | 0.2 | > 0.1 | 0.2 | > 0.1 | > 0.1 |
| Organic H (mol g−1) | 8.9 | 35.9 | 2.2 | 6.7 | 21.3 | 128.5 |
| % R-H | 22.5 | 36.5 | 31.8 | 34.0 | 17.1 | 17.9 |
| % H-C = C | 33.5 | 22.5 | 26.7 | 22.2 | 21.9 | 19.0 |
| % H-C-O | 38.8 | 36.7 | 36.9 | 40.6 | 47.9 | 59.9 |
| % O-CH-O | 2.2 | 1.5 | 2.3 | 1.6 | 4.9 | 1.0 |
| % Ar-H | 2.9 | 2.8 | 2.3 | 1.8 | 8.1 | 2.1 |
| % H-C = O | n.d. | n.d. | n.d. | n.d. | 0.2 | 0.1 |
n.d.: not detected.