Where will the weather be fresher in the same weather?

1, different latitudes (different solar radiation)

2. Geostrophic deflection angle (wind direction and river flow direction)

3. Distance from the sea (affecting humidity)

4. Source of wind direction (as far as China is concerned, the influence of southeast wind and northwest wind is very different).

5. Terrain differences

6. Cold and warm currents flow through

7. Impact of human activities.

8. The underlying surface is different (the difference from the surface is sand, soil or water, etc. ).