| O3 Concentrations/months | Control | Urban | Suburban | Rural |
| July, 2013 | 15 | 123 | 111 | 21 |
| August | 15 | 124 | 113 | 21 |
| September | 15 | 100 | 96 | 17 |
| October | 15 | 88 | 87 | 16 |
| November | 15 | 87 | 86 | 17 |
| December | 15 | 85 | 86 | 15 |
| January, 2014 | 15 | 66 | 65 | 14 |
| February | 15 | 65 | 62 | 15 |
| March | 15 | 96 | 87 | 17 |
| April | 14 | 99 | 88 | 18 |
| May | 14 | 98 | 89 | 18 |
| June | 15 | 117 | 108 | 17 |