Fig. 3: Dependence of aerosol nitrogen components on RH, temperature, and NOx. | npj Clean Air

Fig. 3: Dependence of aerosol nitrogen components on RH, temperature, and NOx.

From: Molecular and elemental markers-based source apportionment of organic nitrogen in PM2.5 at a suburban site in Hong Kong

Fig. 3: Dependence of aerosol nitrogen components on RH, temperature, and NOx.

ON/TN ratio and mass concentrations of aerosol NO3−-N, NH4+-N, and ON as a function of ambient RH (a-1 to a-4), temperature (b-1 to b-4), and NOx mixing ratio (c-1 to c-4) during nighttime and daytime. Bins are divided considering the distribution frequency of datapoints. Square markers and horizontal lines in the boxes are the mean and median values, respectively. Boxes represent the 25th and 75th percentiles, and whiskers represent 10th and 90th percentiles.

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