Past 24 Hours Pollutant Concentration Summary
Eastern
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2024-04-20 15:00 | 19.0 | 64.5 | 0.8 | - | 26.9 | 18.5 |
| 2024-04-20 14:00 | 21.4 | 63.6 | 0.8 | - | 25.7 | 18.9 |
| 2024-04-20 13:00 | 17.4 | 69.5 | 1.1 | - | 22.3 | 15.4 |
| 2024-04-20 12:00 | 16.1 | 70.4 | 1.1 | - | 21.2 | 13.4 |
| 2024-04-20 11:00 | 20.3 | 63.7 | 0.7 | - | 20.1 | 13.1 |
| 2024-04-20 10:00 | 15.7 | 63.8 | 0.7 | - | 20.3 | 14.3 |
| 2024-04-20 09:00 | 22.4 | 54.3 | 0.8 | - | 21.3 | 16.0 |
| 2024-04-20 08:00 | 21.7 | 50.5 | 0.8 | - | 17.6 | 12.2 |
| 2024-04-20 07:00 | 24.3 | 45.7 | 1.0 | - | 16.5 | 11.2 |
| 2024-04-20 06:00 | 16.3 | 53.7 | 0.8 | - | 19.1 | 14.4 |
| 2024-04-20 05:00 | 13.4 | 58.4 | 1.0 | - | 18.0 | 13.3 |
| 2024-04-20 04:00 | 10.2 | 62.5 | 1.0 | - | 17.4 | 12.6 |
| 2024-04-20 03:00 | 11.2 | 60.0 | 1.0 | - | 15.6 | 10.7 |
| 2024-04-20 02:00 | 14.7 | 56.2 | 1.0 | - | 17.9 | 12.8 |
| 2024-04-20 01:00 | 17.3 | 53.9 | 1.0 | - | 15.6 | 10.2 |
| 2024-04-20 00:00 | 19.7 | 50.4 | 0.8 | - | 16.7 | 11.3 |
| 2024-04-19 23:00 | 19.4 | 50.6 | 0.7 | - | 17.9 | 12.9 |
| 2024-04-19 22:00 | 14.3 | 56.8 | 0.9 | - | 17.5 | 11.8 |
| 2024-04-19 21:00 | 15.3 | 59.8 | 0.7 | - | 16.9 | 10.9 |
| 2024-04-19 20:00 | 22.6 | 52.4 | 0.8 | - | 17.8 | 11.8 |
| 2024-04-19 19:00 | 29.2 | 46.0 | 0.6 | - | 20.9 | 14.5 |
| 2024-04-19 18:00 | 25.4 | 54.6 | 0.6 | - | 17.4 | 10.8 |
| 2024-04-19 17:00 | 30.6 | 56.0 | 0.6 | - | 17.9 | 11.3 |
| 2024-04-19 16:00 | 22.9 | 57.5 | 0.7 | - | 19.6 | 12.6 |
Remarks:
(1) Time shown is in Hong Kong time.
(2) Concentration shown is in microgram per cubic metre (µg/m3).
(3) Abbreviation:
NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates
(4) The pollutant concentration is based on real time data taken directly from EPD's Air Quality Monitoring Network.