| index | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| pm10 | 46 (Moderate) | 60 (Unhealthy for Sensitive Groups) | 42 (Moderate) | 43 (Moderate) | 44 (Moderate) | 49 (Moderate) | 63 (Unhealthy for Sensitive Groups) | 71 (Unhealthy for Sensitive Groups) | 51 (Unhealthy for Sensitive Groups) | 75 (Unhealthy for Sensitive Groups) | 74 (Unhealthy for Sensitive Groups) | 84 (Unhealthy) | 79 (Unhealthy for Sensitive Groups) | 57 (Unhealthy for Sensitive Groups) | 43 (Moderate) | 44 (Moderate) | 47 (Moderate) | 51 (Unhealthy for Sensitive Groups) | 65 (Unhealthy for Sensitive Groups) | 72 (Unhealthy for Sensitive Groups) | 84 (Unhealthy) | 92 (Unhealthy) | 58 (Unhealthy for Sensitive Groups) |
| so2 | 3.1 (Good) | 6.7 (Good) | 4.3 (Good) | 8.5 (Good) | 15 (Good) | 12 (Good) | 14 (Good) | 18 (Good) | 16 (Good) | 40 (Good) | 39 (Good) | 38 (Good) | 17 (Good) | 16 (Good) | 8.9 (Good) | 11 (Good) | 11 (Good) | 18 (Good) | 25 (Good) | 31 (Good) | 36 (Good) | 51 (Moderate) | 35 (Good) |
| no2 | 13 (Good) | 13 (Good) | 9.2 (Good) | 15 (Good) | 15 (Good) | 13 (Good) | 12 (Good) | 20 (Good) | 17 (Good) | 29 (Good) | 32 (Good) | 30 (Good) | 24 (Good) | 22 (Good) | 13 (Good) | 12 (Good) | 14 (Good) | 12 (Good) | 19 (Good) | 19 (Good) | 22 (Good) | 28 (Good) | 16 (Good) |
| o3 | 57 (Good) | 84 (Moderate) | 95 (Moderate) | 75 (Moderate) | 68 (Good) | 60 (Good) | 46 (Good) | 32 (Good) | 30 (Good) | 24 (Good) | 26 (Good) | 17 (Good) | 29 (Good) | 53 (Good) | 71 (Moderate) | 83 (Moderate) | 70 (Moderate) | 60 (Good) | 40 (Good) | 35 (Good) | 29 (Good) | 24 (Good) | 31 (Good) |
Can-MTHM
| index | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| o3 | 57 | 84 | 95 | 75 | 68 | 60 | 46 | 32 | 30 | 24 | 26 | 17 | 29 | 53 | 71 | 83 | 70 | 60 | 40 | 35 | 29 | 24 | 31 |
| pm10 | 46 | 60 | 42 | 43 | 44 | 49 | 63 | 71 | 51 | 75 | 74 | 84 | 79 | 57 | 43 | 44 | 47 | 51 | 65 | 72 | 84 | 92 | 58 |
| no2 | 13 | 13 | 9.2 | 15 | 15 | 13 | 12 | 20 | 17 | 29 | 32 | 30 | 24 | 22 | 13 | 12 | 14 | 12 | 19 | 19 | 22 | 28 | 16 |
| so2 | 3.1 | 6.7 | 4.3 | 8.5 | 15 | 12 | 14 | 18 | 16 | 40 | 39 | 38 | 17 | 16 | 8.9 | 11 | 11 | 18 | 25 | 31 | 36 | 51 | 35 |