Fig. 5: Diurnal variations of nitrate formation pathways during clean and haze periods. | npj Climate and Atmospheric Science

Fig. 5: Diurnal variations of nitrate formation pathways during clean and haze periods.

From: A diurnal story of Δ17O(\(\rm{NO}_{3}^{-}\)) in urban Nanjing and its implication for nitrate aerosol formation

Fig. 5

The changes in mass concentrations of nitrate (\(\rm{NO}_{3}^{-}\)), the relative contributions of three pathways (pathway 1: NO2 + OH/H2O, pathway 2: N2O5 + H2O and pathway 3: NO3 + HC/H2O and N2O5 + Cl−) to nitrate production, oxygen isotope anomaly of nitrate (∆17O(\(\rm{NO}_{3}^{-}\))), ozone (O3), nitrogen dioxide (NO2) and relative humidity (RH) a during clean period and b during haze period.

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