Table 1.
Analysis of particulate matters
| Analytesa | DEP | RSC | PSC | CC | TD | RD |
|---|---|---|---|---|---|---|
| Element carbon (μg/m3) | 557.1b | 1392 | 8587 | 1.5c | 0.57 | 1.37 |
| Organic carbon (μg/m3) | 192.9b | 41548 | 28566 | 50 | 5.33 | 3.44 |
| Ions (μg/mg) | 29.0 | 63.2 | 26.8 | 382.3 | 71.1 | 23.4 |
|
| ||||||
| Total PAHs (μg/m3) | 18.1b | 170.2 | 652.6 | 127c | 8.2c | 4.7c |
| Total PAHs/OC (%) | 9.38 | 0.41 | 2.28 | 0.25 | 0.15 | 0.14 |
|
| ||||||
| Metals (μg/mg) | 9.6 | 0.6 | 0.7 | 109.1 | 69.4 | 25.2 |
a
DEP: diesel exhaust particles, RSC: rice straw combustion, PSC: pine stem combustion, CC: coal combustion, TD: tunnel dust, RD: road side dust,
b
The PHAs concentration on DEP was measured by McDonald et al. (19),
c
Concentration unit of ng/m3 NA: Not analyzed.