Table 16 Statistical analysis for fluctuated concentration rate of the green quantity characteristic
| a. Group statistics(winter) |
| Classification | Number of samples (N) | Mean (µg/m3) | Min (µg/m3) | Max (µg/m3) |
| Slope-type | 80 | 61.0125 | 23.00 | 97.00 |
| Rain-type | 24 | 50.1250 | 45.00 | 56.00 |
| Mounding-type | 24 | 30.3750 | 23.00 | 36.00 |
| Total/mean | 128 | 47.1708 | 30.33 | 63.00 |
| b. Levene's test for equality of variances(winter) |
| Levene's statistics | df1 | df2 | Sig. |
| 13.276 | 2 | 125 | 0.000 |
| c. Analysis of variance (ANOVA)(winter) |
| Classification | Sum of squares | df | Mean squares | F | Sig. |
| Between groups | 17,613.192 | 2 | 8,806.596 | 45.846 | 0.000 |
| Within groups | 24,011.238 | 125 | 192.090 | | |
| Total | 41,624.430 | 127 | | | |