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. Author manuscript; available in PMC: 2018 Sep 7.
Published in final edited form as: Atmos Environ (1994). 2017 Sep 7;165:23–24. doi: 10.1016/j.atmosenv.2017.06.027

Fig. 3.

Fig. 3

Measured NO2/NOX ratios at each measurement location during the Las Vegas field study for all hours; (a) left-hand panel contains only hours where the measured O3 at the Paul Meyer monitoring site is ≤ 30 ppb, and (b) right-hand panel contains only hours where measured O3 at the Paul Meyer monitoring site is > 30 ppb. Values are differentiated by weekday vs. weekend. The box represents the middle 50% of the data, extending from the 25th to the 75th percentiles; the horizontal line through the center of the box is the median; the whiskers represent 1.5*IQR (the inter-Quartile Range, the range from the 25th to 75th percentiles); the points are outliers beyond 1.5*IQR. Data presented are in subset with winds from the west and in Q3.