Table 1 Significant differences of PM2.5 levels among different seasons in 2013–2017.
Season | Average (μg.m−3) | Significance | |||
---|---|---|---|---|---|
Spring | Summer | Autumn | Winter | ||
Spring | 58.2 | 1.000 | — | — | — |
Summer | 41.6 | 0.048 * | 1.000 | — | — |
Autumn | 50.2 | 0.320 | 0.282 | 1.000 | — |
Winter | 88.7 | 0.001** | 0.000 ** | 0.000 ** | 1.000 |