Figure 6d: Histogram of Maximum Daily 1-Hour Ozone Concentrations at Long Point, May 1 to September 30, 2001

Figure 6d displays the frequency of maximum daily 1-hour ozone concentrations at Long Point in various modal classes from May 1 to September 30, 2001: There were no data points less than 15 ppb. There were 2 data points between 15 and 24 ppb. There were 7 data points between 25 and 34 ppb. There were 21 data points between 35 and 44 ppb. There were 48 data points between 45 and 54 ppb. There were 29 data points between 55 and 64 ppb. There were 25 data points between 65 and 74 ppb. There were 19 data points between 75 and 84 ppb. There were 14 data points between 85 and 94 ppb. There were 7 data points between 95 and 104 ppb. There was 1 data point between 105 and 114 ppb. There were 2 data points between 115 and 124 ppb. There was 1 data point between 125 and 134 ppb. There was 1 data point between 135 and 144 ppb.