Table 2.
Correlation coefficient (r) of meteorological and pollen parameters at the source field. ‘Ci’ (i = 1 to 4) is the concentration in the source plot (grains/m3), C1 is at 2.8 m, C2 1.7 m, C3 1.0 m, and C4 0.35 m; ‘CEi’ (i = 1to 3) is the concentration at the edge of the source field, CE1 is at 3.0 m, CE2 1.5 m, and CE3 1.0 m. Deposition (grains/m2/sec) is data collected in the center of the field at 0.35 m height. IHF is the integrated horizontal flux (grains/m2/sec) at the center of the field. u*: friction velocity, m/sec; ξ(3.3): atmospheric stability at anemometer height (3.3 m), unitless; 
(3.3): mean wind speed at anemometer height (3.3 m), m/sec; 
(3.3): mean vertical wind speed at anemometer height (3.3 m), m/sec; T: air temperature; RH: relative humidity, %;SR: solar radiation; ‘σ’ means standard deviation of the corresponding meteorological parameter
| Variable | Number of sample | u* | ξ(3.3) |
 (3.3) |
σu (3.3) |
 (3.3) |
σw (3.3) | T | σ T | RH | SR |
|---|---|---|---|---|---|---|---|---|---|---|---|
| C1 | 121 | −0.16 (NS) | −0.19 (NS) | −0.17 (NS) | −0.18 (NS) | 0.04 (NS) | 0.01 (NS) | 0.06 (NS) | −0.13 (NS) | 0.35 (***) | 0.00 (NS) |
| C2 | 121 | −0.17 (NS) | −0.18 (NS) | −0.19 (NS) | −0.19 (NS) | 0.01 (NS) | 0.07 (NS) | 0.00 (NS) | 0.07 (NS) | 0.38 (***) | 0.07 (NS) |
| C3 | 121 | −0.12 (NS) | −0.11 (NS) | −0.13 (NS) | −0.17 (NS) | 0.07 (NS) | −0.02 (NS) | −0.05 (NS) | −0.15 (NS) | 0.23 (NS) | 0.01 (NS) |
| C4 | 121 | −0.13 (NS) | −0.16 (NS) | −0.16 (NS) | −0.19 (NS) | 0.07 (NS) | 0.00 (NS) | 0.03 (NS) | −0.17 (NS) | 0.31 (***) | −0.03 (NS) |
| Deposition | 121 | −0.16 (NS) | −0.06 (NS) | −0.20 (NS) | 0.00 (NS) | −0.50 (***) | −0.01 (NS) | 0.20 (NS) | −0.08 (NS) | 0.06 (NS) | 0.17 (NS) |
| IHF | 121 | −0.08 (.38) | −0.21 (.02) | −0.11 (.22) | −0.18 (NS) | 0.01 (NS) | 0.02 (NS) | 0.02 (NS) | 0.08 (NS) | 0.36 (***) | 0.02 (NS) |
| Source strength | 121 | −0.12 (NS) | −0.09 (NS) | −0.19 (NS) | −0.05 (NS) | −0.60 (NS) | –0.00 (NS) | 0.16 (NS) | –0.09 (NS) | 0.22 (NS) | 0.245 (NS) |
| C1/C3 | 121 | 0.30 (NS) | 0.05 (NS) | 0.35 (***) | 0.20 (NS) | −0.53 (***) | 0.26 (NS) | 0.04 (NS) | 0.20 (NS) | 0.07 (NS) | −0.21 (NS) |
| C2/C3 | 121 | 0.25 (NS) | 0.08 (NS) | 0.30 (NS) | 0.11 (NS) | −0.56 (NS) | 0.24 (NS) | −0.01 (NS) | 0.25 (NS) | −0.04 (NS) | −0.19 (NS) |
| C4/C3 | 121 | 0.17 (NS) | 0.02 (NS) | 0.19 (NS) | 0.13 (NS) | −0.37 (***) | 0.16 (NS) | 0.21 (NS) | 0.45 (***) | 0.11 (NS) | −0.25 (NS) |
| CE3/C3 | 17 | 0.73 (***) | 0.11 (NS) | 0.74 (***) | 0.34 (NS) | −0.64 (NS) | 0.27 (NS) | −0.34 (NS) | 0.05 (NS) | −0.18 (NS) | 0.03 (NS) |
| CE2/C3 | 17 | 0.73 (***) | 0.11 (NS) | 0.74 (***) | 0.34 (NS) | −0.64 (NS) | 0.27 (NS) | −0.18 (NS) | 0.05 (NS) | −0.18 (NS) | 0.02 (NS) |
| CE1/C3 | 17 | 0.83 (***) | 0.15 (NS) | 0.84 (***) | 0.50 (NS) | −0.76 (***) | 0.35 (NS) | −0.22 (NS) | 0.20 (NS) | −0.12 (NS) | −0.12 (NS) |
NS, not significant: P > 0.005
Significance level: P < 0.0001.