Past 24 Hours Pollutant Concentration Summary
Tai Po
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2023-09-23 04:00 | 9.9 | 57.2 | 2.9 | - | 13.8 | 10.6 |
| 2023-09-23 03:00 | - | 66.1 | - | - | 15.3 | 10.9 |
| 2023-09-23 02:00 | 13.0 | 68.3 | 2.8 | - | 16.8 | 12.1 |
| 2023-09-23 01:00 | 10.3 | 79.6 | 2.8 | - | 16.7 | 11.9 |
| 2023-09-23 00:00 | 15.3 | 80.2 | 3.0 | - | 18.6 | 14.3 |
| 2023-09-22 23:00 | 23.7 | 73.9 | 3.2 | - | 17.4 | 13.2 |
| 2023-09-22 22:00 | 12.7 | 89.2 | 2.8 | - | 16.0 | 11.4 |
| 2023-09-22 21:00 | 18.6 | 102.5 | 3.0 | - | 20.4 | 15.1 |
| 2023-09-22 20:00 | 37.2 | 92.1 | 3.6 | - | 24.2 | 18.3 |
| 2023-09-22 19:00 | 35.9 | 106.2 | 3.6 | - | 22.9 | 17.2 |
| 2023-09-22 18:00 | 32.4 | 106.9 | 5.8 | - | 25.7 | 18.6 |
| 2023-09-22 17:00 | 63.3 | 90.7 | 9.5 | - | 31.1 | 22.5 |
| 2023-09-22 16:00 | 53.6 | 113.5 | 20.3 | - | 23.1 | 16.0 |
| 2023-09-22 15:00 | 31.7 | 112.5 | 2.6 | - | 18.5 | 13.1 |
| 2023-09-22 14:00 | 16.9 | 129.1 | 4.3 | - | 20.3 | 14.8 |
| 2023-09-22 13:00 | 21.4 | 127.7 | 3.9 | - | 17.8 | 12.6 |
| 2023-09-22 12:00 | 23.7 | 112.5 | 3.5 | - | 20.4 | 14.7 |
| 2023-09-22 11:00 | 28.9 | 104.3 | 3.0 | - | 23.7 | 17.3 |
| 2023-09-22 10:00 | 26.4 | 82.8 | 3.3 | - | 25.7 | 17.7 |
| 2023-09-22 09:00 | 38.7 | 43.2 | 3.4 | - | 22.2 | 13.0 |
| 2023-09-22 08:00 | 45.3 | 15.2 | 3.3 | - | 21.7 | 12.9 |
| 2023-09-22 07:00 | 35.5 | 19.0 | 2.7 | - | 23.5 | 15.3 |
| 2023-09-22 06:00 | 27.9 | 31.1 | 2.9 | - | 24.4 | 16.5 |
| 2023-09-22 05:00 | 30.8 | 30.7 | 2.9 | - | 25.3 | 17.8 |
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.