Tai Po
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-09-22 18:00 | 24.9 | 40.8 | 3.6 | - | 4.7 | 3.3 |
| 2021-09-22 17:00 | 16.9 | 47.4 | 3.6 | - | 3.8 | 3.0 |
| 2021-09-22 16:00 | 12.6 | 49.8 | 3.3 | - | 4.9 | 4.2 |
| 2021-09-22 15:00 | 12.7 | 49.3 | 2.9 | - | 3.0 | 2.2 |
| 2021-09-22 14:00 | 8.5 | 51.9 | 2.8 | - | 3.6 | 3.4 |
| 2021-09-22 13:00 | 7.3 | 56.7 | 2.9 | - | 4.3 | 4.1 |
| 2021-09-22 12:00 | 11.5 | 53.5 | 3.3 | - | 5.5 | 4.4 |
| 2021-09-22 11:00 | 16.4 | 37.1 | 3.6 | - | 5.6 | 3.9 |
| 2021-09-22 10:00 | 16.8 | 28.6 | 3.7 | - | 7.3 | 4.1 |
| 2021-09-22 09:00 | 22.8 | 17.7 | 4.2 | - | 12.6 | 6.7 |
| 2021-09-22 08:00 | 19.3 | 7.3 | 3.6 | - | 15.6 | 6.0 |
| 2021-09-22 07:00 | 17.8 | 1.6 | 3.4 | - | 14.6 | 3.7 |
| 2021-09-22 06:00 | 21.9 | 0.8 | 3.4 | - | 16.0 | 5.8 |
| 2021-09-22 05:00 | 25.3 | 1.0 | 3.5 | - | 14.1 | 4.4 |
| 2021-09-22 04:00 | 28.9 | 1.1 | 3.5 | - | 16.5 | 7.6 |
| 2021-09-22 03:00 | 34.0 | 1.5 | 3.7 | - | 18.8 | 9.8 |
| 2021-09-22 02:00 | 42.4 | 0.6 | 4.3 | - | 22.4 | 13.4 |
| 2021-09-22 01:00 | 50.1 | 0.7 | 4.2 | - | 22.4 | 13.5 |
| 2021-09-22 00:00 | 46.0 | 0.6 | 4.3 | - | 23.3 | 14.1 |
| 2021-09-21 23:00 | 46.5 | 1.0 | 3.8 | - | 27.4 | 17.7 |
| 2021-09-21 22:00 | 49.6 | 1.4 | 4.0 | - | 24.6 | 15.5 |
| 2021-09-21 21:00 | 56.0 | 1.5 | 4.1 | - | 20.3 | 12.4 |
| 2021-09-21 20:00 | 63.5 | 1.8 | 4.7 | - | 21.0 | 13.1 |
| 2021-09-21 19:00 | 68.6 | 2.4 | 5.5 | - | 16.1 | 9.6 |
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.
