| index | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2016-01 | 2015-12 | 2015-11 | 2015-10 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| o3:ppm | 0.02 (Good) | 0.03 (Good) | 0.02 (Good) | 0.02 (Good) | 0.02 (Good) | 0.02 (Good) | 0.02 (Good) | 0.01 (Good) | 0.01 (Good) | 0.02 (Good) | 0.02 (Good) | 0.02 (Good) | 0.02 (Good) | 0.02 (Good) | 0.03 (Good) | 0.02 (Good) | 0.03 (Good) | 0.02 (Good) | 0.02 (Good) | 0.02 (Good) | 0.01 (Good) |
| pm10 | 34 (Moderate) | 59 (Unhealthy for Sensitive Groups) | 76 (Unhealthy for Sensitive Groups) | 65 (Unhealthy for Sensitive Groups) | 54 (Unhealthy for Sensitive Groups) | 48 (Moderate) | 41 (Moderate) | 28 (Moderate) | 22 (Moderate) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | 42 (Moderate) | 45 (Moderate) | 36 (Moderate) | 38 (Moderate) |
| so2:ppm | - (Good) | - (Good) | - (Good) | 0.01 (Good) | 0.01 (Good) | 0.01 (Good) | 0.01 (Good) | 0 (Good) | 0 (Good) | 0 (Good) | 0 (Good) | 0 (Good) | 0 (Good) | 0 (Good) | 0 (Good) | 0 (Good) | 0 (Good) | 0 (Good) | 0 (Good) | 0 (Good) | 0 (Good) |
| co:ppm | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | 0.31 (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | 3.1 (Good) | 23 (Good) | 1.5 (Good) | 1.3 (Good) | 0.94 (Good) |
| no2:ppm | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | - (Good) | 0 (Good) | 0 (Good) | 0 (Good) | 0 (Good) |
Din Daeng, Din Daeng
| index | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2016-01 | 2015-12 | 2015-11 | 2015-10 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| pm10 | 34 | 59 | 76 | 65 | 54 | 48 | 41 | 28 | 22 | - | - | - | - | - | - | - | - | 42 | 45 | 36 | 38 |
| so2:ppm | - | - | - | 0.01 | 0.01 | 0.01 | 0.01 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| o3:ppm | 0.02 | 0.03 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.01 | 0.01 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 | 0.03 | 0.02 | 0.03 | 0.02 | 0.02 | 0.02 | 0.01 |
| no2:ppm | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0 | 0 | 0 | 0 |
| co:ppm | - | - | - | - | - | - | - | - | 0.31 | - | - | - | - | - | - | - | 3.1 | 23 | 1.5 | 1.3 | 0.94 |