Figure 3: Maximum Daily 1-Hour Ozone Concentrations, July 1-25, 2001

Figure 3 compares the daily 1-hour maximum ozone concentrations measured at the Parry Sound AQI station to those measured by the Mobile AQI Unit, for the period July 1 to 25, 2001.

The daily 1-hour maximum ozone concentration for July 1, 2001 was 48 ppb at Parry Sound and 32 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 2, 2001 was 31 ppb at Parry Sound and 31 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 3, 2001 was 59 ppb at Parry Sound and 57 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 4, 2001 was 54 ppb at Parry Sound and 51 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 5, 2001 was 31 ppb at Parry Sound and 28 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 6, 2001 was 33 ppb at Parry Sound and 37 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 7, 2001 was 66 ppb at Parry Sound and 70 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 8, 2001 was 53 ppb at Parry Sound and 49 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 9, 2001 was 59 ppb at Parry Sound and 61 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 10, 2001 was 59 ppb at Parry Sound and 36 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 11, 2001 was 24 ppb at Parry Sound and 23 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 12, 2001 was 23 ppb at Parry Sound and 20 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 13, 2001 was 31 ppb at Parry Sound and 36 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 14, 2001 was 35 ppb at Parry Sound and 47 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 15, 2001 was 37 ppb at Parry Sound and 47 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 16, 2001 was 33 ppb at Parry Sound and 29 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 17, 2001 was 55 ppb at Parry Sound and 43 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 18, 2001 was 44 ppb at Parry Sound and 48 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 19, 2001 was 47 ppb at Parry Sound and 48 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 20, 2001 was 74 ppb at Parry Sound and 76 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 21, 2001 was 95 ppb at Parry Sound and 74 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 22, 2001 was 68 ppb at Parry Sound and 78 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 23, 2001 was 77 ppb at Parry Sound and 89 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 24, 2001 was 68 ppb at Parry Sound and 48 ppb at the Mobile AQI Unit. The daily 1-hour maximum ozone concentration for July 25, 2001 was 31 ppb at Parry Sound and 19 ppb at the Mobile AQI Unit.