Past 24 Hours Pollutant Concentration Summary
Mong Kok
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-12-02 08:00 | 64.3 | 36.0 | 4.3 | 466.8 | 27.9 | 11.9 |
| 2021-12-02 07:00 | 51.7 | 44.8 | 4.1 | 447.9 | 27.2 | 11.4 |
| 2021-12-02 06:00 | 36.7 | 58.5 | 3.8 | 456.2 | 26.4 | 10.7 |
| 2021-12-02 05:00 | 25.6 | 67.7 | 3.7 | 421.3 | 28.3 | 11.6 |
| 2021-12-02 04:00 | 27.1 | 68.1 | 3.5 | 449.5 | 27.3 | 11.0 |
| 2021-12-02 03:00 | 28.9 | 69.7 | 3.8 | 400.4 | 28.5 | 11.3 |
| 2021-12-02 02:00 | 22.2 | 76.3 | 3.9 | 384.9 | 30.7 | 11.6 |
| 2021-12-02 01:00 | 34.9 | 67.1 | 4.2 | 404.2 | 31.5 | 12.0 |
| 2021-12-02 00:00 | 59.1 | 46.9 | 4.2 | 463.8 | 33.3 | 12.4 |
| 2021-12-01 23:00 | 53.7 | 54.4 | 3.8 | 461.9 | 34.9 | 13.7 |
| 2021-12-01 22:00 | 53.5 | 58.4 | 4.3 | 483.7 | 34.7 | 13.8 |
| 2021-12-01 21:00 | 77.6 | 40.9 | 4.5 | 529.0 | 39.6 | 17.1 |
| 2021-12-01 20:00 | 84.5 | 35.7 | 4.5 | 571.1 | 40.2 | 16.4 |
| 2021-12-01 19:00 | 88.4 | 39.9 | 4.0 | 524.6 | 38.5 | 14.4 |
| 2021-12-01 18:00 | 98.4 | 36.6 | 4.2 | 537.3 | 39.9 | 13.8 |
| 2021-12-01 17:00 | 85.4 | 44.3 | 3.5 | 491.3 | 40.1 | 14.5 |
| 2021-12-01 16:00 | 71.8 | 59.5 | 3.4 | 479.7 | 39.1 | 14.5 |
| 2021-12-01 15:00 | 71.3 | 64.3 | 3.0 | 475.8 | 35.1 | 13.6 |
| 2021-12-01 14:00 | 69.2 | 57.1 | 3.4 | 480.9 | 31.0 | 13.0 |
| 2021-12-01 13:00 | 68.8 | 49.2 | 3.4 | 458.0 | 30.2 | 11.8 |
| 2021-12-01 12:00 | 64.7 | 46.9 | 2.8 | 453.4 | 32.9 | 12.6 |
| 2021-12-01 11:00 | 51.4 | 48.4 | 2.9 | 442.0 | 34.1 | 14.1 |
| 2021-12-01 10:00 | 56.7 | 46.8 | 3.4 | 432.4 | 30.3 | 12.8 |
| 2021-12-01 09:00 | 64.0 | 39.4 | 3.5 | 474.1 | 26.2 | 11.1 |
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.