Research Article
Potential Source Regions and Transportation Pathways of Reactive Gases at a Regional Background Site in Northwestern China
Figure 5
Wind roses with reactive gases (CO, O3, NO2, and SO2) mixing ratios in four seasons.
(a) |
(b) |
(c) |
(d) |
(e) |
(f) |
(g) |
(h) |
(i) |
(j) |
(k) |
(l) |
(m) |
(n) |
(o) |
(p) |