| 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 | 45 (Moderate) | 48 (Moderate) | 43 (Moderate) | 21 (Moderate) | 17 (Good) | 50 (Moderate) | 60 (Unhealthy for Sensitive Groups) | 101 (Unhealthy) | 74 (Unhealthy for Sensitive Groups) | 71 (Unhealthy for Sensitive Groups) | 97 (Unhealthy) | 105 (Unhealthy) | 75 (Unhealthy for Sensitive Groups) | 72 (Unhealthy for Sensitive Groups) | 48 (Moderate) | 48 (Moderate) | 45 (Moderate) | 52 (Unhealthy for Sensitive Groups) | 55 (Unhealthy for Sensitive Groups) | 90 (Unhealthy) | 89 (Unhealthy) | 62 (Unhealthy for Sensitive Groups) | 48 (Moderate) |
| so2 | 4.3 (Good) | 5 (Good) | 3.8 (Good) | 4.3 (Good) | 4.6 (Good) | 4.1 (Good) | 5.4 (Good) | 6 (Good) | 8.8 (Good) | 6.4 (Good) | 6.7 (Good) | 7.2 (Good) | 6.6 (Good) | 6.4 (Good) | 4.5 (Good) | 4.4 (Good) | 7.9 (Good) | 4.5 (Good) | 6.2 (Good) | 6.2 (Good) | 6.6 (Good) | 18 (Good) | 14 (Good) |
| no2 | 32 (Good) | 31 (Good) | 28 (Good) | 29 (Good) | 25 (Good) | - (Good) | - (Good) | 43 (Moderate) | 41 (Moderate) | 40 (Moderate) | 51 (Moderate) | 50 (Moderate) | 44 (Moderate) | 45 (Moderate) | 33 (Good) | 30 (Good) | 35 (Good) | 36 (Good) | 39 (Good) | 47 (Moderate) | 64 (Moderate) | 58 (Moderate) | 55 (Moderate) |
| o3 | 59 (Good) | 83 (Moderate) | 120 (Unhealthy for Sensitive Groups) | 88 (Moderate) | 79 (Moderate) | 50 (Good) | 52 (Good) | 30 (Good) | 23 (Good) | 21 (Good) | 16 (Good) | 10 (Good) | 25 (Good) | 69 (Good) | 92 (Moderate) | 60 (Good) | 63 (Good) | 62 (Good) | 41 (Good) | 30 (Good) | 18 (Good) | 22 (Good) | 22 (Good) |
Keçiören
| 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 | 45 | 48 | 43 | 21 | 17 | 50 | 60 | 101 | 74 | 71 | 97 | 105 | 75 | 72 | 48 | 48 | 45 | 52 | 55 | 90 | 89 | 62 | 48 |
| no2 | 32 | 31 | 28 | 29 | 25 | - | - | 43 | 41 | 40 | 51 | 50 | 44 | 45 | 33 | 30 | 35 | 36 | 39 | 47 | 64 | 58 | 55 |
| so2 | 4.3 | 5 | 3.8 | 4.3 | 4.6 | 4.1 | 5.4 | 6 | 8.8 | 6.4 | 6.7 | 7.2 | 6.6 | 6.4 | 4.5 | 4.4 | 7.9 | 4.5 | 6.2 | 6.2 | 6.6 | 18 | 14 |
| o3 | 59 | 83 | 120 | 88 | 79 | 50 | 52 | 30 | 23 | 21 | 16 | 10 | 25 | 69 | 92 | 60 | 63 | 62 | 41 | 30 | 18 | 22 | 22 |