Past 24 Hours Pollutant Concentration Summary
Central/Western
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2020-08-09 19:00 | 15.6 | 47.9 | 5.8 | - | 7.6 | 5.5 |
| 2020-08-09 18:00 | 13.7 | 45.4 | 6.0 | - | 6.3 | 4.1 |
| 2020-08-09 17:00 | 15.1 | 54.2 | 6.7 | - | 8.7 | 5.7 |
| 2020-08-09 16:00 | 16.9 | 58.3 | 7.0 | - | 8.7 | 6.0 |
| 2020-08-09 15:00 | 10.6 | 59.6 | 6.4 | - | 7.1 | 4.9 |
| 2020-08-09 14:00 | 20.3 | 43.8 | 7.5 | - | 5.1 | 3.0 |
| 2020-08-09 13:00 | 17.6 | 39.7 | 6.2 | - | 4.4 | 3.3 |
| 2020-08-09 12:00 | 9.8 | 44.2 | 4.9 | - | 5.6 | 4.7 |
| 2020-08-09 11:00 | 9.0 | 33.6 | 4.7 | - | 5.6 | 4.0 |
| 2020-08-09 10:00 | 19.9 | 17.7 | 6.2 | - | 7.1 | 4.5 |
| 2020-08-09 09:00 | 21.4 | 10.2 | 6.9 | - | 5.7 | 3.4 |
| 2020-08-09 08:00 | 18.9 | 12.0 | 6.2 | - | 5.5 | 2.7 |
| 2020-08-09 07:00 | 24.9 | 4.7 | 6.3 | - | 3.7 | 0.7 |
| 2020-08-09 06:00 | 17.8 | 10.3 | 5.6 | - | 4.1 | 2.5 |
| 2020-08-09 05:00 | 13.1 | 16.9 | 6.3 | - | 2.9 | 1.2 |
| 2020-08-09 04:00 | - | - | - | - | 5.8 | 4.0 |
| 2020-08-09 03:00 | 24.6 | 13.9 | 5.2 | - | 4.2 | 2.0 |
| 2020-08-09 02:00 | 15.3 | 27.7 | 4.9 | - | 5.9 | 3.5 |
| 2020-08-09 01:00 | 9.5 | 37.9 | 4.9 | - | 5.3 | 3.1 |
| 2020-08-09 00:00 | 11.7 | 36.0 | 5.0 | - | 6.1 | 3.9 |
| 2020-08-08 23:00 | 13.3 | 35.0 | 5.3 | - | 4.7 | 2.9 |
| 2020-08-08 22:00 | 9.4 | 40.2 | 5.0 | - | 6.1 | 4.2 |
| 2020-08-08 21:00 | 13.9 | 35.3 | 4.9 | - | 6.7 | 5.6 |
| 2020-08-08 20:00 | 13.2 | 32.2 | 4.7 | - | 6.0 | 4.1 |
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.
