Table 1.
Site-specific concentrations [μg/m3 (%)] of PM2.5 attributed to each source.
| Site | Sea salt | Oil combustion | Motor vehicle emissions | Dust | Regional sulfur | Total |
|---|---|---|---|---|---|---|
| Bridgeport | 0.26 (2.21) | 1.53 (13.15) | 3.71 (31.93) | 1.67 (14.43) | 4.44 (38.28) | 11.61 |
| Danbury | 1.17 (10.42)a | 0.75 (6.65) | 3.36 (29.82) | 1.12 (9.91) | 4.87 (43.20) | 11.27 |
| Hartford | 0.14 (1.39) | 1.21 (12.22) | 3.38 (34.17) | 1.40 (14.11) | 3.77 (38.11) | 9.90 |
| New Haven | 0.45 (3.60) | 0.38 (2.98) | 3.85 (30.49) | 1.15 (9.13) | 6.79 (53.80) | 12.62 |
| Norwalk | 1.69 (14.43) | 3.45 (29.44) | 2.06 (17.64) | 4.51 (38.50) | 11.71 | |
| Waterbury | 2.54 (20.72) | 3.57 (29.18) | 1.75 (14.25) | 4.39 (35.85) | 12.25 | |
| aSea salt plus other nonidentified sources. | ||||||