Past 24 Hours Pollutant Concentration Summary
Central
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2020-08-09 18:00 | 50.6 | 23.2 | 6.3 | 495.4 | 6.3 | 2.9 |
| 2020-08-09 17:00 | 30.5 | 44.3 | 6.6 | 302.6 | 8.7 | 4.1 |
| 2020-08-09 16:00 | 49.3 | 32.7 | 7.8 | 360.2 | 11.6 | 5.4 |
| 2020-08-09 15:00 | 57.6 | 25.9 | 7.5 | 426.0 | 11.3 | 6.5 |
| 2020-08-09 14:00 | 37.7 | 31.9 | 7.4 | 362.0 | 11.5 | 6.1 |
| 2020-08-09 13:00 | 47.3 | 28.3 | 7.3 | 342.2 | 9.1 | 2.8 |
| 2020-08-09 12:00 | 51.5 | 23.5 | 7.8 | 321.8 | 14.9 | 4.0 |
| 2020-08-09 11:00 | 56.3 | 12.6 | 8.6 | 408.0 | 17.8 | 7.8 |
| 2020-08-09 10:00 | 41.5 | 12.1 | 7.6 | 405.7 | 12.9 | 4.8 |
| 2020-08-09 09:00 | 41.4 | 9.5 | 8.4 | 388.1 | 10.8 | 4.0 |
| 2020-08-09 08:00 | 34.3 | 8.9 | 7.6 | 408.2 | 11.1 | 6.2 |
| 2020-08-09 07:00 | 31.6 | 9.2 | 6.0 | 389.6 | 5.5 | 2.1 |
| 2020-08-09 06:00 | 27.8 | 9.0 | 5.7 | 392.2 | 6.8 | 4.4 |
| 2020-08-09 05:00 | 24.9 | 9.4 | 5.3 | 403.8 | 9.7 | 7.5 |
| 2020-08-09 04:00 | 24.1 | 10.9 | 4.9 | 339.9 | 7.6 | 4.6 |
| 2020-08-09 03:00 | - | 12.9 | - | - | 10.6 | 6.6 |
| 2020-08-09 02:00 | 33.5 | 16.0 | 5.1 | 369.4 | 15.4 | 10.2 |
| 2020-08-09 01:00 | 31.1 | 24.4 | 4.6 | 323.4 | 14.9 | 7.4 |
| 2020-08-09 00:00 | 38.5 | 18.1 | 5.1 | 425.4 | 14.2 | 6.1 |
| 2020-08-08 23:00 | 43.4 | 15.9 | 5.1 | 397.9 | 9.6 | 4.5 |
| 2020-08-08 22:00 | 39.6 | 19.8 | 5.0 | 421.2 | 9.2 | 4.3 |
| 2020-08-08 21:00 | 41.0 | 21.6 | 5.4 | 482.5 | 7.1 | 2.6 |
| 2020-08-08 20:00 | 42.9 | 18.8 | 5.7 | 411.5 | 8.4 | 4.2 |
| 2020-08-08 19:00 | 56.0 | 16.7 | 5.9 | 551.1 | 8.6 | 3.3 |
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.
