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 | 33 (Good) | 47 (Moderate) | 44 (Moderate) | 46 (Moderate) | 49 (Moderate) | 69 (Moderate) | 58 (Moderate) | 44 (Moderate) | 46 (Moderate) | 39 (Good) | 31 (Good) | 34 (Good) | 41 (Moderate) | 41 (Moderate) | 49 (Moderate) | 46 (Moderate) | 68 (Moderate) | 53 (Moderate) | 51 (Moderate) | 55 (Moderate) | 42 (Moderate) | 41 (Moderate) | 28 (Good) | 36 (Good) | 33 (Good) | 48 (Moderate) | 46 (Moderate) | 62 (Moderate) | 65 (Moderate) |
o3 | 40 (Good) | 59 (Good) | 45 (Good) | 41 (Good) | 46 (Good) | 45 (Good) | 78 (Moderate) | 90 (Moderate) | 84 (Moderate) | 49 (Good) | 36 (Good) | 34 (Good) | 48 (Good) | 41 (Good) | 44 (Good) | 33 (Good) | 25 (Good) | 26 (Good) | 50 (Good) | 78 (Moderate) | 52 (Good) | 51 (Good) | 30 (Good) | 50 (Good) | 43 (Good) | 47 (Good) | 51 (Good) | 34 (Good) | 33 (Good) |
so2 | 7.9 (Good) | 7.3 (Good) | 6.6 (Good) | 5.8 (Good) | 5.5 (Good) | 7.7 (Good) | 6 (Good) | 4 (Good) | 3.7 (Good) | 3.8 (Good) | 3.3 (Good) | 3.2 (Good) | 7.8 (Good) | 7.6 (Good) | 4 (Good) | 2.3 (Good) | 4.8 (Good) | 7.7 (Good) | 7.2 (Good) | 8.9 (Good) | 10 (Good) | 8.7 (Good) | 8.6 (Good) | 8.3 (Good) | 8.3 (Good) | 11 (Good) | 9.3 (Good) | 10 (Good) | 9.8 (Good) |
pm10 | 22 (Moderate) | 36 (Moderate) | 34 (Moderate) | 32 (Moderate) | 40 (Moderate) | 60 (Unhealthy for Sensitive Groups) | 64 (Unhealthy for Sensitive Groups) | 50 (Unhealthy for Sensitive Groups) | 43 (Moderate) | 29 (Moderate) | 26 (Moderate) | 19 (Good) | 28 (Moderate) | 29 (Moderate) | 37 (Moderate) | 35 (Moderate) | 67 (Unhealthy for Sensitive Groups) | 49 (Moderate) | 49 (Moderate) | 57 (Unhealthy for Sensitive Groups) | 37 (Moderate) | 27 (Moderate) | 21 (Moderate) | 26 (Moderate) | 24 (Moderate) | 48 (Moderate) | 44 (Moderate) | 59 (Unhealthy for Sensitive Groups) | 55 (Unhealthy for Sensitive Groups) |
pm25 | 14 (Moderate) | 23 (Moderate) | 22 (Moderate) | 22 (Moderate) | 26 (Moderate) | 35 (Moderate) | 35 (Unhealthy for Sensitive Groups) | 32 (Moderate) | 26 (Moderate) | 17 (Moderate) | 14 (Moderate) | 10 (Good) | 17 (Moderate) | 20 (Moderate) | 24 (Moderate) | 23 (Moderate) | 41 (Unhealthy for Sensitive Groups) | 29 (Moderate) | 31 (Moderate) | 33 (Moderate) | 22 (Moderate) | 18 (Moderate) | 11 (Good) | 16 (Moderate) | 15 (Moderate) | 28 (Moderate) | 28 (Moderate) | 38 (Unhealthy for Sensitive Groups) | 35 (Unhealthy for Sensitive Groups) |
co | 773 (Good) | 805 (Good) | 776 (Good) | 684 (Good) | 759 (Good) | 618 (Good) | 663 (Good) | 774 (Good) | 666 (Good) | 580 (Good) | 519 (Good) | 604 (Good) | 559 (Good) | 686 (Good) | 779 (Good) | 748 (Good) | 830 (Good) | 879 (Good) | 910 (Good) | 878 (Good) | 788 (Good) | 762 (Good) | 597 (Good) | 608 (Good) | 488 (Good) | 584 (Good) | 753 (Good) | 803 (Good) | 746 (Good) |
Tuen Mun
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 | 33 | 47 | 44 | 46 | 49 | 69 | 58 | 44 | 46 | 39 | 31 | 34 | 41 | 41 | 49 | 46 | 68 | 53 | 51 | 55 | 42 | 41 | 28 | 36 | 33 | 48 | 46 | 62 | 65 |
o3 | 40 | 59 | 45 | 41 | 46 | 45 | 78 | 90 | 84 | 49 | 36 | 34 | 48 | 41 | 44 | 33 | 25 | 26 | 50 | 78 | 52 | 51 | 30 | 50 | 43 | 47 | 51 | 34 | 33 |
so2 | 7.9 | 7.3 | 6.6 | 5.8 | 5.5 | 7.7 | 6 | 4 | 3.7 | 3.8 | 3.3 | 3.2 | 7.8 | 7.6 | 4 | 2.3 | 4.8 | 7.7 | 7.2 | 8.9 | 10 | 8.7 | 8.6 | 8.3 | 8.3 | 11 | 9.3 | 10 | 9.8 |
co | 773 | 805 | 776 | 684 | 759 | 618 | 663 | 774 | 666 | 580 | 519 | 604 | 559 | 686 | 779 | 748 | 830 | 879 | 910 | 878 | 788 | 762 | 597 | 608 | 488 | 584 | 753 | 803 | 746 |
pm10 | 22 | 36 | 34 | 32 | 40 | 60 | 64 | 50 | 43 | 29 | 26 | 19 | 28 | 29 | 37 | 35 | 67 | 49 | 49 | 57 | 37 | 27 | 21 | 26 | 24 | 48 | 44 | 59 | 55 |
pm25 | 14 | 23 | 22 | 22 | 26 | 35 | 35 | 32 | 26 | 17 | 14 | 10 | 17 | 20 | 24 | 23 | 41 | 29 | 31 | 33 | 22 | 18 | 11 | 16 | 15 | 28 | 28 | 38 | 35 |