| index | 2018-10 | 2018-09 | 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 | 48 (Moderate) | 48 (Moderate) | 48 (Moderate) | 32 (Moderate) | 36 (Moderate) | 49 (Moderate) | 35 (Moderate) | 51 (Unhealthy for Sensitive Groups) | 38 (Moderate) | 57 (Unhealthy for Sensitive Groups) | 242 (Very bad Hazardous) | 43 (Moderate) | 39 (Moderate) | 39 (Moderate) | 47 (Moderate) | 54 (Unhealthy for Sensitive Groups) | 66 (Unhealthy for Sensitive Groups) | 204 (Very bad Hazardous) | 35 (Moderate) | 33 (Moderate) | - (Good) |
| so2 | 3 (Good) | 3 (Good) | 9.3 (Good) | 14 (Good) | 13 (Good) | 8.3 (Good) | 7.3 (Good) | 9.9 (Good) | 12 (Good) | 7.9 (Good) | 5.8 (Good) | 8.8 (Good) | 9.1 (Good) | 10 (Good) | 8 (Good) | 6.1 (Good) | 5.3 (Good) | 11 (Good) | 11 (Good) | 7.2 (Good) | 7.1 (Good) |
| no2 | 66 (Moderate) | 66 (Moderate) | 37 (Good) | 28 (Good) | 49 (Moderate) | 49 (Moderate) | 35 (Good) | 39 (Good) | 41 (Moderate) | 46 (Moderate) | 58 (Moderate) | 41 (Moderate) | 25 (Good) | 26 (Good) | 37 (Good) | 28 (Good) | 32 (Good) | 33 (Good) | 32 (Good) | 28 (Good) | 24 (Good) |
| o3 | 22 (Good) | 22 (Good) | 50 (Good) | 53 (Good) | 52 (Good) | 38 (Good) | 37 (Good) | 23 (Good) | 26 (Good) | 21 (Good) | 23 (Good) | 53 (Good) | 57 (Good) | 59 (Good) | 58 (Good) | 57 (Good) | 46 (Good) | - (Good) | - (Good) | - (Good) | - (Good) |
Ümraniye
| index | 2018-10 | 2018-09 | 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 | 66 | 66 | 37 | 28 | 49 | 49 | 35 | 39 | 41 | 46 | 58 | 41 | 25 | 26 | 37 | 28 | 32 | 33 | 32 | 28 | 24 |
| so2 | 3 | 3 | 9.3 | 14 | 13 | 8.3 | 7.3 | 9.9 | 12 | 7.9 | 5.8 | 8.8 | 9.1 | 10 | 8 | 6.1 | 5.3 | 11 | 11 | 7.2 | 7.1 |
| pm10 | 48 | 48 | 48 | 32 | 36 | 49 | 35 | 51 | 38 | 57 | 242 | 43 | 39 | 39 | 47 | 54 | 66 | 204 | 35 | 33 | - |
| o3 | 22 | 22 | 50 | 53 | 52 | 38 | 37 | 23 | 26 | 21 | 23 | 53 | 57 | 59 | 58 | 57 | 46 | - | - | - | - |