Past 24 Hours Pollutant Concentration Summary
Sha Tin
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-12-02 08:00 | 65.5 | 25.7 | 5.4 | - | 27.8 | 12.6 |
| 2021-12-02 07:00 | 44.1 | 42.6 | 5.4 | - | 27.6 | 12.5 |
| 2021-12-02 06:00 | 26.8 | 59.6 | 5.6 | - | 26.7 | 11.8 |
| 2021-12-02 05:00 | 20.1 | 66.3 | 5.7 | - | 26.9 | 11.9 |
| 2021-12-02 04:00 | 16.8 | 72.3 | 5.6 | - | 26.5 | 9.7 |
| 2021-12-02 03:00 | 19.2 | 72.1 | 5.6 | - | 27.4 | 9.9 |
| 2021-12-02 02:00 | 21.9 | 71.5 | 5.8 | - | 29.7 | 11.3 |
| 2021-12-02 01:00 | 32.2 | 63.9 | 5.6 | - | 27.8 | 9.5 |
| 2021-12-02 00:00 | 42.2 | 55.8 | 5.8 | - | 29.0 | 9.8 |
| 2021-12-01 23:00 | 46.0 | 55.8 | 5.0 | - | 31.1 | 12.1 |
| 2021-12-01 22:00 | 49.6 | 57.0 | 5.5 | - | 32.6 | 14.3 |
| 2021-12-01 21:00 | 67.2 | 40.7 | 5.0 | - | 32.7 | 12.4 |
| 2021-12-01 20:00 | 58.6 | 54.0 | 4.8 | - | 33.1 | 12.0 |
| 2021-12-01 19:00 | 68.9 | 48.4 | 4.4 | - | 33.7 | 11.4 |
| 2021-12-01 18:00 | 66.6 | - | 5.1 | - | 36.3 | 12.2 |
| 2021-12-01 17:00 | - | - | - | - | 34.6 | 9.2 |
| 2021-12-01 16:00 | - | - | - | - | 36.5 | 11.4 |
| 2021-12-01 15:00 | 21.5 | 110.4 | 4.2 | - | 33.4 | 11.1 |
| 2021-12-01 14:00 | 20.4 | 104.1 | 4.5 | - | 30.0 | 9.3 |
| 2021-12-01 13:00 | 21.9 | 93.1 | 4.8 | - | 33.8 | 12.3 |
| 2021-12-01 12:00 | 22.3 | 83.8 | 4.7 | - | 32.9 | 11.1 |
| 2021-12-01 11:00 | 23.4 | 76.7 | 4.4 | - | 29.1 | 9.8 |
| 2021-12-01 10:00 | 27.0 | 71.8 | 4.2 | - | 26.9 | 10.3 |
| 2021-12-01 09:00 | 45.9 | 50.5 | 3.4 | - | 24.8 | 10.8 |
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.