Past 24 Hours Pollutant Concentration Summary
Central/Western
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2020-06-05 05:00 | 4.7 | 33.8 | 3.9 | - | 5.9 | 2.0 |
| 2020-06-05 04:00 | 9.4 | 28.7 | 4.1 | - | 5.7 | 2.5 |
| 2020-06-05 03:00 | 10.9 | 28.2 | 3.8 | - | 5.6 | 2.9 |
| 2020-06-05 02:00 | 8.5 | 29.9 | 3.8 | - | 3.4 | 1.0 |
| 2020-06-05 01:00 | 14.1 | 27.2 | 4.3 | - | 7.2 | 3.4 |
| 2020-06-05 00:00 | 10.8 | 28.7 | 4.2 | - | 9.2 | 5.4 |
| 2020-06-04 23:00 | 9.6 | 30.4 | 4.1 | - | 8.7 | 5.0 |
| 2020-06-04 22:00 | 7.4 | 34.4 | 4.0 | - | 8.6 | 4.7 |
| 2020-06-04 21:00 | 13.5 | 29.0 | 4.2 | - | 8.6 | 4.3 |
| 2020-06-04 20:00 | 18.0 | 25.4 | 4.7 | - | 8.8 | 4.2 |
| 2020-06-04 19:00 | 16.8 | 28.3 | 4.7 | - | 8.1 | 3.3 |
| 2020-06-04 18:00 | 18.4 | 28.9 | 4.9 | - | 10.5 | 5.7 |
| 2020-06-04 17:00 | 14.2 | 39.9 | 4.6 | - | 12.4 | 7.3 |
| 2020-06-04 16:00 | 18.5 | 44.9 | 4.7 | - | 11.2 | 6.4 |
| 2020-06-04 15:00 | 11.1 | 49.6 | 4.3 | - | 8.3 | 4.3 |
| 2020-06-04 14:00 | 8.8 | 49.7 | 4.1 | - | 8.1 | 4.6 |
| 2020-06-04 13:00 | 8.2 | 48.1 | 4.2 | - | 9.4 | 4.6 |
| 2020-06-04 12:00 | 14.6 | 39.4 | 4.5 | - | 11.1 | 5.6 |
| 2020-06-04 11:00 | 19.3 | 31.2 | 5.1 | - | 11.5 | 6.6 |
| 2020-06-04 10:00 | 25.1 | 22.9 | 6.5 | - | 9.7 | 6.5 |
| 2020-06-04 09:00 | 20.8 | 22.3 | 5.2 | - | 8.2 | 5.2 |
| 2020-06-04 08:00 | 17.1 | 25.8 | 4.6 | - | 7.3 | 3.8 |
| 2020-06-04 07:00 | 11.3 | 31.0 | 4.5 | - | 9.3 | 6.0 |
| 2020-06-04 06:00 | 11.0 | 29.8 | 4.7 | - | 9.7 | 6.1 |
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.
