Table 1.
Particle Mass (PM), Total Water Soluble Extract (TWSE), WSOC, Non-Exchangeable Organic Hydrogen Concentrations, δ13C, and molar H/C ratios (min – max; mean (standard deviation)) in aerosol samples.
| Parameter | Winter (SON) N = 14
|
Spring (MAM) N = 12
|
Summer (JJA) N = 12
|
Fall (SON) N = 13
|
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | σ | Min | Max | Mean | σ | Min | Max | Mean | σ | Min | Max | Mean | σ | Min | Max | |
| TSP (μg/m3) | 25.9 | 13.2 | 11.7 | 59.7 | 41.1 | 17.7 | 25.2 | 73.9 | 35.2 | 8.7 | 19.2 | 50.3 | 38.8 | 36.5 | 18.4 | 158.1 |
| TWSE (μg/m3) | 8.2 | 2.9 | 4.4 | 13.7 | 15.2 | 16.9 | 5.0 | 67.9 | 12.3 | 2.9 | 6.9 | 17.2 | 8.8 | 3.9 | 0.1 | 14.8 |
| WSOC (μg/m3) | 1.8 | 1.0 | 0.7 | 4.0 | 2.7 | 0.7 | 1.6 | 3.9 | 3.4 | 1.3 | 1.7 | 5.9 | 2.5 | 0.8 | 1.4 | 3.8 |
| Org. H (nmol/m3) | 58.8 | 29 | 27.5 | 130.7 | 98.3 | 27.5 | 44.7 | 153.6 | 130.5 | 68.0 | 56.4 | 275.4 | 90.1 | 34.5 | 38.7 | 133.3 |
| H–C | 21.4 | 11.9 | 8.7 | 55.5 | 29.1 | 7.6 | 16.6 | 43.9 | 48.9 | 26.6 | 20.9 | 104.7 | 32.0 | 13.3 | 13.7 | 49.2 |
| H–C–C= | 17.6 | 8.9 | 7.8 | 39.1 | 24.4 | 6.3 | 13.2 | 38.4 | 36.0 | 22.9 | 12.5 | 82.4 | 26.0 | 11.9 | 11.6 | 40.5 |
| H–C–O | 17.1 | 9.3 | 8.0 | 40.0 | 40.8 | 22.8 | 12.5 | 85.7 | 41.2 | 18.1 | 19.6 | 80.9 | 28.0 | 11.4 | 9.5 | 47.5 |
| O–CH–O & H–C= | 1.7 | 0.8 | 0.7 | 3.2 | 2.7 | 1.1 | 1.3 | 5.1 | 2.6 | 1.0 | 1.6 | 4.6 | 2.3 | 0.8 | 0.8 | 3.3 |
| H–Ar | 1.1 | 0.5 | 0.3 | 1.8 | 1.2 | 0.5 | 0.5 | 2.3 | 1.7 | 1.0 | 0.6 | 3.7 | 1.8 | 0.9 | 0.6 | 3.5 |
| δ13C ratio (‰) | −26.20 | −25.03 | −26.55 | −24.82 | −27.20 | −24.76 | −25.95 | −23.90 | ||||||||