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Table 1 Mean values of air pollutants and meteorological conditions at the selected sampling days
| Site | Date | PM10-2.5 μm | PM2.5-0.18 μm | PM0.18 μm | PNC | O3 | NO | NO2 | Temp | RH | Wind | BG PM10 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (μg/m 3 ) | (μg/m 3 ) | (μg/m 3 ) | (#/cm 3 ) | (ppb) | (ppb) | (ppb) | (°C) | (%) | (m/s) | (μg/m 3 ) | ||
| Farm | 05-Jul-07 | 4.3 | 6.7 | 3.8 | 6700 | 30 | 2.99 | 6.6 | 17 | 81 | 5.3 | 18 |
| Urban background | 02-Jul-07 | 3.9 | 6.1 | 2.0 | 20600 | 23 | 7.39 | 16 | 18 | 81 | 0.26 | 15 |
| Steelworks | 16-Jul-07 | 6.0 | 11 | 4.5 | NA | 37 | 14.1 | 32 | 21 | 84 | 1.2 | 27 |
| Harbor | 13-Dec-07 | 6.1 | 19 | 5.5 | 19600 | 3.9 | 25.2 | 24 | 3.8 | 90 | 3.2 | 24 |
| Continuous traffic | 12-Jul-07 | 15 | 16 | 4.4 | NA | 12 | 36.5 | 25 | 18 | 79 | 2.5 | 26 |
| Truck traffic | 26-Jul-07 | 6.0 | 14 | 4.1 | 42800 | 4.5 | 106 | 30 | 20 | 81 | 3.8 | 17 |
| Stop & go traffic | 24-Jan-08 | 43 | 28 | 13 | 64700 | 2.4 | 41.1 | 38 | 11 | 90 | 4.8 | 90 |
| Underground | 26-Sep-07 | 58 | 38 | 83* | 39300 | 0.9 | 14.9 | 20 | 18 | 57 | 0.00 | 13 |
