Fig. 3: Cl2 production mechanisms.
From: Driving factors and photochemical impacts of Cl2 in coastal atmosphere of Southeast China
The relationship between Cl2 and ClNO2 during the nighttime (a). The correlation between daytime Cl2 concentrations (8 a.m.–4 p.m.) and a proxy of nitrate (NO3−) photolysis (NO3− × JNO2 × Sa), and the color of the dots denotes the concentrations of NO3− (b) and NH4+ (c), respectively. The correlation between daytime Cl2 concentrations (8 a.m.–4 p.m.) and a proxy of aerosol iron photochemistry (Fe × JNO2 × Sa), the color of the dots denotes the concentrations of Fe (d).
