Mong Kok
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-01-22 23:00 | 129.2 | 5.5 | 15.6 | 1,595.3 | 70.8 | 54.0 |
| 2021-01-22 22:00 | 127.2 | 5.6 | 13.8 | 1,633.5 | 66.5 | 51.1 |
| 2021-01-22 21:00 | 129.8 | 5.8 | 14.0 | 1,534.2 | 61.2 | 46.0 |
| 2021-01-22 20:00 | 129.7 | 5.8 | 14.8 | 1,513.9 | 51.9 | 38.3 |
| 2021-01-22 19:00 | 146.1 | 5.8 | 15.4 | 1,463.8 | 50.6 | 35.0 |
| 2021-01-22 18:00 | 156.6 | 6.1 | 14.0 | 1,332.2 | 48.8 | 28.9 |
| 2021-01-22 17:00 | 158.6 | 9.4 | 12.9 | 1,163.0 | 56.7 | 37.5 |
| 2021-01-22 16:00 | 161.2 | 13.0 | 10.6 | 1,127.5 | 63.4 | 39.0 |
| 2021-01-22 15:00 | 152.4 | 10.2 | 12.2 | 1,230.6 | 76.7 | 52.1 |
| 2021-01-22 14:00 | 165.5 | 10.4 | 13.7 | 1,248.3 | 90.1 | 66.3 |
| 2021-01-22 13:00 | 152.1 | 10.1 | 14.9 | 1,284.6 | 93.5 | 70.8 |
| 2021-01-22 12:00 | 145.3 | 9.3 | 16.7 | 1,287.2 | 103.1 | 77.0 |
| 2021-01-22 11:00 | 152.5 | 6.7 | 19.4 | 1,428.0 | 113.5 | 81.9 |
| 2021-01-22 10:00 | 144.0 | 5.5 | 21.1 | 1,638.7 | 112.4 | 78.3 |
| 2021-01-22 09:00 | 134.5 | 4.4 | 19.6 | 1,723.8 | 102.8 | 71.6 |
| 2021-01-22 08:00 | 125.4 | 4.8 | 16.3 | 1,592.9 | 99.2 | 72.8 |
| 2021-01-22 07:00 | 119.9 | 5.7 | 12.6 | 1,563.8 | 100.0 | 73.9 |
| 2021-01-22 06:00 | 113.9 | 5.8 | 11.3 | 1,581.4 | 98.9 | 73.0 |
| 2021-01-22 05:00 | 109.1 | 5.6 | 10.1 | 1,500.8 | 93.8 | 68.1 |
| 2021-01-22 04:00 | 117.0 | 5.3 | 11.6 | 1,514.3 | 109.4 | 79.5 |
| 2021-01-22 03:00 | 125.0 | - | 12.5 | 1,560.6 | 135.0 | 96.8 |
| 2021-01-22 02:00 | 154.0 | 5.9 | 14.1 | 1,659.0 | 149.1 | 107.2 |
| 2021-01-22 01:00 | 182.9 | 6.3 | 14.9 | 1,760.0 | 90.3 | 63.2 |
| 2021-01-22 00:00 | 160.0 | 6.6 | 12.9 | 2,134.9 | 65.1 | 44.8 |
Remarks:
(1) Time shown is in Hong Kong time.
(2) NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates
(3) Concentration shown is in µg/m3.
(4) The pollutant concentration is based on real time data taken directly from EPD's Air Quality Monitoring Network.
