มลพิษทางอากาศใน Eastern: ดัชนีคุณภาพอากาศแบบ Real-time และการแจ้งเตือนหมอกควัน
| 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 | 45 (Moderate) | 53 (Moderate) | 52 (Moderate) | 52 (Moderate) | 57 (Moderate) | 69 (Moderate) | 63 (Moderate) | 67 (Moderate) | 68 (Moderate) | 55 (Moderate) | 46 (Moderate) | 48 (Moderate) | 54 (Moderate) | 57 (Moderate) | 60 (Moderate) | 53 (Moderate) | 73 (Moderate) | 59 (Moderate) | 61 (Moderate) | 71 (Moderate) | 63 (Moderate) | 63 (Moderate) | 43 (Moderate) | 56 (Moderate) | 52 (Moderate) | 66 (Moderate) | 71 (Moderate) | 80 (Moderate) | 68 (Moderate) |
| o3 | 26 (Good) | 59 (Good) | 46 (Good) | 46 (Good) | 47 (Good) | 46 (Good) | 70 (Moderate) | 74 (Moderate) | 63 (Good) | 37 (Good) | 30 (Good) | 30 (Good) | 51 (Good) | 42 (Good) | 45 (Good) | 35 (Good) | 37 (Good) | 30 (Good) | 44 (Good) | 67 (Good) | 36 (Good) | 35 (Good) | 25 (Good) | 41 (Good) | 35 (Good) | 46 (Good) | 51 (Good) | 37 (Good) | 39 (Good) |
| so2 | 5.2 (Good) | 3.6 (Good) | 3 (Good) | 2.7 (Good) | 3.6 (Good) | 5.4 (Good) | 4.3 (Good) | 3.8 (Good) | 4 (Good) | 3.3 (Good) | 4 (Good) | 3.5 (Good) | 2.7 (Good) | 2.9 (Good) | 2.5 (Good) | 2.2 (Good) | 5.4 (Good) | 5.5 (Good) | 5.4 (Good) | 6.4 (Good) | 7.4 (Good) | 5.3 (Good) | 3.8 (Good) | 4.1 (Good) | 6.3 (Good) | 6 (Good) | 6.1 (Good) | 6.9 (Good) | 5.6 (Good) |
| co | 540 (Good) | 436 (Good) | 414 (Good) | 661 (Good) | 867 (Good) | 790 (Good) | 714 (Good) | 853 (Good) | 731 (Good) | 735 (Good) | 739 (Good) | 735 (Good) | 681 (Good) | 629 (Good) | 645 (Good) | 726 (Good) | 815 (Good) | 797 (Good) | 698 (Good) | 658 (Good) | 675 (Good) | 890 (Good) | 811 (Good) | 812 (Good) | 732 (Good) | 624 (Good) | 839 (Good) | 886 (Good) | 855 (Good) |
| pm10 | 22 (Moderate) | 35 (Moderate) | 37 (Moderate) | 33 (Moderate) | 39 (Moderate) | 47 (Moderate) | 50 (Unhealthy for Sensitive Groups) | 46 (Moderate) | 39 (Moderate) | 27 (Moderate) | 27 (Moderate) | 22 (Moderate) | 32 (Moderate) | 33 (Moderate) | 34 (Moderate) | 39 (Moderate) | 54 (Unhealthy for Sensitive Groups) | 41 (Moderate) | 40 (Moderate) | 46 (Moderate) | 34 (Moderate) | 31 (Moderate) | 27 (Moderate) | 28 (Moderate) | 27 (Moderate) | 49 (Moderate) | 46 (Moderate) | 54 (Unhealthy for Sensitive Groups) | 44 (Moderate) |
| pm25 | 13 (Good) | 21 (Moderate) | 22 (Moderate) | 19 (Moderate) | 25 (Moderate) | 28 (Moderate) | 27 (Moderate) | 29 (Moderate) | 24 (Moderate) | 17 (Moderate) | 16 (Moderate) | 13 (Good) | 19 (Moderate) | 22 (Moderate) | 21 (Moderate) | 24 (Moderate) | 35 (Moderate) | 25 (Moderate) | 25 (Moderate) | 27 (Moderate) | 22 (Moderate) | 21 (Moderate) | 14 (Moderate) | 17 (Moderate) | 17 (Moderate) | 28 (Moderate) | 28 (Moderate) | 35 (Unhealthy for Sensitive Groups) | 29 (Moderate) |
Causeway Bay
| 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 | 64 | 72 | 66 | 66 | 75 | 91 | 88 | 95 | 100 | 77 | 66 | 68 | 71 | 76 | 77 | 68 | 92 | 74 | 82 | 101 | 90 | 91 | 61 | 80 | 75 | 91 | 96 | 105 | 96 |
| o3 | 15 | 43 | 35 | 34 | 32 | 30 | 49 | 48 | 35 | 20 | 17 | 17 | 33 | 26 | 31 | 23 | 21 | 17 | 26 | 39 | 15 | 14 | 11 | 20 | 18 | 24 | 29 | 15 | 20 |
| so2 | 8.6 | 5.3 | 4.8 | 4.3 | 5.7 | 7.6 | 5.1 | 4.6 | 5.1 | 4 | 6.1 | 5.7 | 4.1 | 4.5 | 4 | 3.8 | 9 | 8.7 | 8.3 | 8.8 | 10 | 6.8 | 4.7 | 5 | 7.7 | 8.1 | 8.8 | 11 | 8.4 |
| pm10 | 29 | 40 | 40 | 37 | 46 | 55 | 53 | 52 | 46 | 31 | 32 | 27 | 37 | 39 | 39 | 47 | 63 | 48 | 46 | 53 | 41 | 38 | 35 | 34 | 33 | 55 | 54 | 62 | 50 |
| pm25 | 17 | 24 | 25 | 22 | 29 | 33 | 30 | 33 | 29 | 21 | 20 | 18 | 24 | 27 | 25 | 30 | 42 | 30 | 30 | 33 | 28 | 27 | 19 | 22 | 21 | 34 | 35 | 43 | 35 |
| co | 540 | 436 | 414 | 661 | 867 | 790 | 714 | 853 | 731 | 735 | 739 | 735 | 681 | 629 | 645 | 726 | 815 | 797 | 698 | 658 | 675 | 890 | 811 | 812 | 732 | 624 | 839 | 886 | 855 |
Eastern
| 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 | 26 | 34 | 39 | 38 | 40 | 46 | 39 | 39 | 36 | 33 | 26 | 28 | 37 | 39 | 43 | 38 | 53 | 43 | 41 | 41 | 36 | 36 | 24 | 32 | 30 | 41 | 46 | 54 | 41 |
| o3 | 38 | 74 | 56 | 58 | 62 | 63 | 92 | 100 | 91 | 54 | 44 | 43 | 68 | 57 | 59 | 47 | 53 | 43 | 62 | 95 | 56 | 57 | 39 | 62 | 52 | 67 | 73 | 58 | 58 |
| so2 | 1.9 | 1.9 | 1.2 | 1.1 | 1.4 | 3.2 | 3.5 | 2.9 | 3 | 2.6 | 1.9 | 1.4 | 1.2 | 1.3 | 1.1 | 0.59 | 1.9 | 2.3 | 2.6 | 4 | 4.8 | 3.8 | 3 | 3.2 | 5 | 4 | 3.5 | 2.9 | 2.9 |
| pm10 | 15 | 30 | 33 | 29 | 32 | 40 | 47 | 40 | 32 | 22 | 22 | 16 | 27 | 26 | 30 | 31 | 45 | 34 | 33 | 39 | 28 | 23 | 19 | 22 | 21 | 43 | 39 | 46 | 38 |
| pm25 | 8.8 | 17 | 19 | 16 | 20 | 23 | 24 | 24 | 18 | 14 | 11 | 7.9 | 15 | 16 | 17 | 18 | 28 | 19 | 20 | 22 | 17 | 14 | 8.7 | 12 | 12 | 23 | 22 | 27 | 23 |
* Pollution data source:
https://openaq.org
(Hong Kong)
The data is licensed under CC-By 4.0