Air Pollution in Tai Po District: Real-time Air Quality Index and smog alert.

Air pollution in Tai Po District from January 2018 to May 2020
pollution pm25 hikersbay.com
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 18 (Good) 20 (Good) 19 (Good) 18 (Good) 21 (Good) 29 (Good) 24 (Good) 24 (Good) 23 (Good) 20 (Good) 17 (Good) 20 (Good) 18 (Good) 24 (Good) 23 (Good) 20 (Good) 34 (Good) 26 (Good) 24 (Good) 27 (Good) 22 (Good) 23 (Good) 16 (Good) 19 (Good) 21 (Good) 23 (Good) 23 (Good) 29 (Good) 27 (Good)
o3 47 (Good) 77 (Moderate) 68 (Good) 66 (Good) 72 (Moderate) 71 (Moderate) 99 (Moderate) 105 (Moderate) 94 (Moderate) 61 (Good) 45 (Good) 44 (Good) 74 (Moderate) 63 (Good) 69 (Good) 59 (Good) 62 (Good) 46 (Good) 74 (Moderate) 97 (Moderate) 55 (Good) 59 (Good) 36 (Good) 50 (Good) 42 (Good) 63 (Good) 77 (Moderate) 67 (Good) 66 (Good)
so2 2.5 (Good) 2.4 (Good) 3.5 (Good) 4.1 (Good) 5.1 (Good) 7 (Good) 6.7 (Good) 5.9 (Good) 6.5 (Good) 3.8 (Good) 3.5 (Good) 4.4 (Good) 4.3 (Good) 4.1 (Good) 3.8 (Good) 4.6 (Good) 3.1 (Good) 4.8 (Good) 4.8 (Good) 6.3 (Good) 5.1 (Good) 4.5 (Good) 4.5 (Good) 4.3 (Good) 4.9 (Good) 4.8 (Good) 4.6 (Good) 5 (Good) 4.7 (Good)
pm10 15 (Good) 27 (Moderate) 28 (Moderate) 25 (Moderate) 30 (Moderate) 40 (Moderate) 47 (Moderate) 42 (Moderate) 33 (Moderate) 24 (Moderate) 22 (Moderate) 15 (Good) 25 (Moderate) 25 (Moderate) 28 (Moderate) 27 (Moderate) 44 (Moderate) 33 (Moderate) 33 (Moderate) 40 (Moderate) 30 (Moderate) 23 (Moderate) 18 (Good) 21 (Moderate) 21 (Moderate) 42 (Moderate) 33 (Moderate) 41 (Moderate) 35 (Moderate)
pm25 9.9 (Good) 17 (Moderate) 16 (Moderate) 15 (Moderate) 19 (Moderate) 24 (Moderate) 26 (Moderate) 26 (Moderate) 20 (Moderate) 15 (Moderate) 12 (Good) 8.7 (Good) 15 (Moderate) 17 (Moderate) 18 (Moderate) 17 (Moderate) 27 (Moderate) 18 (Moderate) 19 (Moderate) 23 (Moderate) 19 (Moderate) 15 (Moderate) 9.1 (Good) 12 (Good) 13 (Moderate) 23 (Moderate) 20 (Moderate) 26 (Moderate) 23 (Moderate)
co 482 (Good) 576 (Good) 511 (Good) 684 (Good) 801 (Good) 680 (Good) 630 (Good) 629 (Good) 483 (Good) 403 (Good) 286 (Good) 202 (Good) 408 (Good) 419 (Good) 560 (Good) 595 (Good) 656 (Good) 502 (Good) 374 (Good) 380 (Good) 448 (Good) 420 (Good) 406 (Good) 472 (Good) 397 (Good) 598 (Good) 524 (Good) 475 (Good) 488 (Good)
data source »

Tai Po

2018-01   2020-05
pollution pm25 hikersbay.com
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 29 32 28 29 33 44 38 41 40 31 28 31 28 35 34 30 50 37 36 44 33 36 26 30 30 35 37 47 43
o3 42 70 62 56 63 61 85 90 83 55 39 37 63 55 62 52 52 39 64 82 50 51 31 34 29 48 71 54 54
so2 3.4 3 2.4 2.4 3.2 6.1 5.8 5.5 7.5 4.3 4.7 4.1 2.8 2.4 2.4 1.8 2.9 3.1 1.8 3.7 3.3 2.5 2.4 2 2.5 1.9 1.8 2 1.9
pm10 16 27 27 23 29 41 44 39 32 22 20 14 23 25 28 29 51 35 33 39 31 24 15 19 19 39 33 43 38
pm25 11 18 17 15 20 27 28 28 22 15 12 8.8 15 19 19 19 33 19 21 25 20 17 8.6 12 12 23 21 30 26

Tap Mun

2018-01   2020-05
pollution pm25 hikersbay.com
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 6.9 9 11 6.3 9.2 14 11 7.7 5.8 8.9 6.2 9.2 9 12 12 9.9 18 16 11 11 11 9.1 6.5 8.5 12 11 10 11 11
o3 52 84 74 76 81 82 112 119 105 67 50 51 84 70 76 66 71 53 83 112 61 66 41 66 56 79 82 81 78
so2 1.7 1.7 4.5 5.9 7.1 7.9 7.6 6.3 5.4 3.2 2.2 4.7 5.9 5.7 5.1 7.4 3.3 6.3 7.8 9 6.8 6.5 6.6 6.6 7.3 7.7 7.4 7.9 7.5
co 482 576 511 684 801 680 630 629 483 403 286 202 408 419 560 595 656 502 374 380 448 420 406 472 397 598 524 475 488
pm10 13 27 29 27 30 39 49 44 34 26 24 17 26 25 28 26 38 31 32 41 30 23 21 23 23 45 33 39 33
pm25 8.6 16 16 15 18 22 24 25 19 15 12 8.7 14 16 16 15 22 17 18 21 17 14 9.6 13 14 23 20 23 20

* Pollution data source: https://openaq.org (Hong Kong) The data is licensed under CC-By 4.0