Past 24 Hours Pollutant Concentration Summary
Sha Tin
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2023-09-28 22:00 | 9.5 | 79.8 | 2.2 | - | 17.4 | 10.3 |
| 2023-09-28 21:00 | 7.7 | 92.8 | 2.1 | - | 18.1 | 11.3 |
| 2023-09-28 20:00 | 10.1 | 96.7 | 2.4 | - | 16.2 | 9.8 |
| 2023-09-28 19:00 | 13.7 | 88.4 | 2.2 | - | 16.2 | 9.4 |
| 2023-09-28 18:00 | 11.5 | 85.8 | 2.6 | - | 15.2 | 9.0 |
| 2023-09-28 17:00 | 6.5 | 93.0 | 2.8 | - | 15.5 | 9.9 |
| 2023-09-28 16:00 | 4.1 | 96.6 | 2.7 | - | 14.4 | 8.6 |
| 2023-09-28 15:00 | 5.4 | 85.0 | 2.4 | - | 16.8 | 11.3 |
| 2023-09-28 14:00 | 7.0 | 83.6 | 2.3 | - | 12.6 | 7.8 |
| 2023-09-28 13:00 | 5.5 | 82.3 | 2.7 | - | 13.5 | 8.3 |
| 2023-09-28 12:00 | 5.2 | 86.9 | 2.7 | - | 12.6 | 7.6 |
| 2023-09-28 11:00 | 7.7 | 84.7 | 2.7 | - | 12.8 | 7.4 |
| 2023-09-28 10:00 | 9.5 | 69.7 | 2.7 | - | 13.0 | 7.3 |
| 2023-09-28 09:00 | 12.5 | 60.6 | 2.5 | - | 11.3 | 5.5 |
| 2023-09-28 08:00 | 12.5 | 56.6 | 2.2 | - | 11.1 | 5.8 |
| 2023-09-28 07:00 | 9.2 | 58.1 | 2.6 | - | 10.9 | 5.7 |
| 2023-09-28 06:00 | 6.8 | 62.1 | 3.0 | - | 10.7 | 3.9 |
| 2023-09-28 05:00 | - | - | - | - | 12.9 | 5.5 |
| 2023-09-28 04:00 | - | - | - | - | 12.9 | 5.6 |
| 2023-09-28 03:00 | 5.4 | 56.1 | 2.3 | - | 14.3 | 6.6 |
| 2023-09-28 02:00 | 5.9 | 58.7 | 2.3 | - | 19.2 | 9.9 |
| 2023-09-28 01:00 | 9.2 | 71.5 | 2.5 | - | 23.5 | 13.1 |
| 2023-09-28 00:00 | 7.8 | 75.3 | 2.2 | - | 22.0 | 11.8 |
| 2023-09-27 23:00 | 5.9 | 80.1 | 2.5 | - | 21.8 | 12.8 |
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.