Air Pollution in Kwai Tsing: Real-time Air Quality Index and smog alert.
| index | 2020-05 | 2020-04 | 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 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| no2 | 56 (Moderate) | 52 (Moderate) | 43 (Moderate) | 42 (Moderate) | 47 (Moderate) | 63 (Moderate) | 61 (Moderate) | 54 (Moderate) | 56 (Moderate) | 51 (Moderate) | 51 (Moderate) | 51 (Moderate) | 47 (Moderate) | 55 (Moderate) | 52 (Moderate) | 46 (Moderate) | 68 (Moderate) | 50 (Moderate) | 49 (Moderate) | 60 (Moderate) | 57 (Moderate) | 60 (Moderate) | 42 (Moderate) | 53 (Moderate) | 53 (Moderate) | 53 (Moderate) | 56 (Moderate) | 65 (Moderate) | 61 (Moderate) |
| o3 | 14 (Good) | 55 (Good) | 55 (Good) | 50 (Good) | 52 (Good) | 50 (Good) | 75 (Moderate) | 80 (Moderate) | 65 (Good) | 31 (Good) | 17 (Good) | 20 (Good) | 49 (Good) | 39 (Good) | 48 (Good) | 39 (Good) | 41 (Good) | 32 (Good) | 54 (Good) | 73 (Moderate) | 34 (Good) | 31 (Good) | 18 (Good) | 34 (Good) | 28 (Good) | 48 (Good) | 57 (Good) | 41 (Good) | 43 (Good) |
| so2 | 8.8 (Good) | 4.9 (Good) | 6.5 (Good) | 5.2 (Good) | 4.7 (Good) | 7.4 (Good) | 9.7 (Good) | 8.3 (Good) | 8.1 (Good) | 6.5 (Good) | 6.5 (Good) | 6 (Good) | 12 (Good) | 12 (Good) | 8.6 (Good) | 7.3 (Good) | 8.3 (Good) | 6.8 (Good) | 5.9 (Good) | 5.4 (Good) | 11 (Good) | 8.2 (Good) | 8.6 (Good) | 13 (Good) | 13 (Good) | 7.6 (Good) | 7 (Good) | 6.3 (Good) | 5.3 (Good) |
| pm10 | 18 (Good) | 26 (Moderate) | 24 (Moderate) | 22 (Moderate) | 26 (Moderate) | 37 (Moderate) | 42 (Moderate) | 36 (Moderate) | 29 (Moderate) | 20 (Moderate) | 21 (Moderate) | 16 (Good) | 22 (Moderate) | 23 (Moderate) | 28 (Moderate) | 26 (Moderate) | 41 (Moderate) | 30 (Moderate) | 32 (Moderate) | 40 (Moderate) | 30 (Moderate) | 26 (Moderate) | 22 (Moderate) | 25 (Moderate) | 27 (Moderate) | 42 (Moderate) | 36 (Moderate) | 39 (Moderate) | 33 (Moderate) |
| pm25 | 11 (Good) | 16 (Moderate) | 15 (Moderate) | 15 (Moderate) | 18 (Moderate) | 23 (Moderate) | 24 (Moderate) | 25 (Moderate) | 19 (Moderate) | 14 (Moderate) | 13 (Good) | 9.5 (Good) | 14 (Moderate) | 17 (Moderate) | 18 (Moderate) | 16 (Moderate) | 26 (Moderate) | 19 (Moderate) | 21 (Moderate) | 24 (Moderate) | 20 (Moderate) | 18 (Moderate) | 13 (Moderate) | 16 (Moderate) | 17 (Moderate) | 23 (Moderate) | 22 (Moderate) | 26 (Moderate) | 22 (Moderate) |
Kwai Chung
| index | 2020-05 | 2020-04 | 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 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| no2 | 56 | 52 | 43 | 42 | 47 | 63 | 61 | 54 | 56 | 51 | 51 | 51 | 47 | 55 | 52 | 46 | 68 | 50 | 49 | 60 | 57 | 60 | 42 | 53 | 53 | 53 | 56 | 65 | 61 |
| o3 | 14 | 55 | 55 | 50 | 52 | 50 | 75 | 80 | 65 | 31 | 17 | 20 | 49 | 39 | 48 | 39 | 41 | 32 | 54 | 73 | 34 | 31 | 18 | 34 | 28 | 48 | 57 | 41 | 43 |
| so2 | 8.8 | 4.9 | 6.5 | 5.2 | 4.7 | 7.4 | 9.7 | 8.3 | 8.1 | 6.5 | 6.5 | 6 | 12 | 12 | 8.6 | 7.3 | 8.3 | 6.8 | 5.9 | 5.4 | 11 | 8.2 | 8.6 | 13 | 13 | 7.6 | 7 | 6.3 | 5.3 |
| pm10 | 18 | 26 | 24 | 22 | 26 | 37 | 42 | 36 | 29 | 20 | 21 | 16 | 22 | 23 | 28 | 26 | 41 | 30 | 32 | 40 | 30 | 26 | 22 | 25 | 27 | 42 | 36 | 39 | 33 |
| pm25 | 11 | 16 | 15 | 15 | 18 | 23 | 24 | 25 | 19 | 14 | 13 | 9.5 | 14 | 17 | 18 | 16 | 26 | 19 | 21 | 24 | 20 | 18 | 13 | 16 | 17 | 23 | 22 | 26 | 22 |
* Pollution data source:
https://openaq.org
(Hong Kong)
The data is licensed under CC-By 4.0