Fig. 6: Diurnal variation of trace gas concentrations in Beijing and Hyytiälä.
From: Understanding atmospheric processes: insights from the comparison between Beijing and Hyytiälä
Concentrations of (a) NO, (b) NOx, (c) SO2, and (d) CO in Beijing (red) and Hyytiälä (blue) are shown, respectively. The ratios of the variables between Beijing and Hyytiälä were also shown (the line with the black circle). The shaded areas are 75/25 percentiles. Hourly mean datasets from 2018 to 2022 were used.
