| 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 | 20 (Moderate) | - (Good) | 35 (Moderate) | 36 (Moderate) | 37 (Moderate) | 44 (Moderate) | 58 (Unhealthy for Sensitive Groups) | 74 (Unhealthy for Sensitive Groups) | 67 (Unhealthy for Sensitive Groups) | 57 (Unhealthy for Sensitive Groups) | 86 (Unhealthy) | 97 (Unhealthy) | 68 (Unhealthy for Sensitive Groups) | 77 (Unhealthy for Sensitive Groups) | 48 (Moderate) | 48 (Moderate) | 39 (Moderate) | 30 (Moderate) | 46 (Moderate) | 47 (Moderate) | - (Good) | - (Good) | - (Good) |
| so2 | 8.9 (Good) | 8.1 (Good) | 4.8 (Good) | 3.7 (Good) | 6.7 (Good) | 5.6 (Good) | 7.3 (Good) | 6.2 (Good) | 6 (Good) | 6 (Good) | 7.9 (Good) | 8.4 (Good) | 6.7 (Good) | 8.5 (Good) | 6.5 (Good) | 6.2 (Good) | 8.1 (Good) | 6.3 (Good) | 8.7 (Good) | 8.6 (Good) | 7.9 (Good) | 15 (Good) | 16 (Good) |
| no2 | 28 (Good) | 39 (Good) | 49 (Moderate) | 42 (Moderate) | 27 (Good) | 28 (Good) | 38 (Good) | 39 (Good) | 53 (Moderate) | 53 (Moderate) | 65 (Moderate) | 68 (Moderate) | 55 (Moderate) | 60 (Moderate) | 29 (Good) | 28 (Good) | 27 (Good) | 25 (Good) | 47 (Moderate) | 55 (Moderate) | 64 (Moderate) | 69 (Moderate) | 60 (Moderate) |
| o3 | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | 67 (Good) | 27 (Good) | 38 (Good) | 22 (Good) | 37 (Good) | 33 (Good) | 46 (Good) | 72 (Moderate) | 79 (Moderate) | 61 (Good) | 64 (Good) | 50 (Good) | 45 (Good) | 28 (Good) | 28 (Good) | 25 (Good) |
Sincan
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| no2 | 28 | 39 | 49 | 42 | 27 | 28 | 38 | 39 | 53 | 53 | 65 | 68 | 55 | 60 | 29 | 28 | 27 | 25 | 47 | 55 | 64 | 69 | 60 |
| so2 | 8.9 | 8.1 | 4.8 | 3.7 | 6.7 | 5.6 | 7.3 | 6.2 | 6 | 6 | 7.9 | 8.4 | 6.7 | 8.5 | 6.5 | 6.2 | 8.1 | 6.3 | 8.7 | 8.6 | 7.9 | 15 | 16 |
| o3 | - | - | - | - | - | - | - | 67 | 27 | 38 | 22 | 37 | 33 | 46 | 72 | 79 | 61 | 64 | 50 | 45 | 28 | 28 | 25 |
| pm10 | 20 | - | 35 | 36 | 37 | 44 | 58 | 74 | 67 | 57 | 86 | 97 | 68 | 77 | 48 | 48 | 39 | 30 | 46 | 47 | - | - | - |