Fig. 1: Long-term variations of HONO concentration and γNO2 in Beijing from January 2019 to January 2024. | Nature Communications

Fig. 1: Long-term variations of HONO concentration and γNO2 in Beijing from January 2019 to January 2024.

From: Changing aerosol chemistry is redefining HONO sources

Fig. 1

a Time series of HONO and b time series of γNO2; c The γNO2 on different reaction surfaces reported in the literature and derived in this study; d The annual variations of HONO concentration and γNO2. The center lines in the box plots represent the median; the red dots indicate the mean; the whiskers mean 1.5 times the interquartile range (IQR); and the boxes span the 25th to 75th percentiles.

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