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. Author manuscript; available in PMC: 2020 Jul 29.
Published in final edited form as: Sci Total Environ. 2017 Aug 7;613-614:1498–1509. doi: 10.1016/j.scitotenv.2017.07.119

Fig. 3.

Fig. 3.

Boxplots of raw observations of (A.) chloride concentration (mg L− 1), (B.) chloride-sulfate mass ratio (CSMR), and (C.) Larson Ratio (LR) for samples collected at monitoring stations dominated by urban land cover. Samples were categorized as being collected in cold periods (< 4C) and warm periods (> 20C) during 1991–1993 and 2011–2013 (listed as 1992 and 2012 on the figure, respectively).