Past 24 Hours Pollutant Concentration Summary
Central/Western
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2018-06-18 13:00 | 12.3 | 104.2 | 8.9 | - | 21.9 | 13.6 |
| 2018-06-18 12:00 | 14.7 | 102.3 | 11.3 | - | 20.7 | 12.5 |
| 2018-06-18 11:00 | 15.1 | 91.0 | 10.4 | - | 27.1 | 17.4 |
| 2018-06-18 10:00 | 27.0 | 76.9 | 14.5 | - | 29.3 | 17.7 |
| 2018-06-18 09:00 | 32.5 | 62.1 | 15.2 | - | 31.8 | 19.3 |
| 2018-06-18 08:00 | 37.2 | 47.2 | 13.7 | - | 32.1 | 20.8 |
| 2018-06-18 07:00 | 44.6 | 26.4 | 18.2 | - | 32.1 | 21.9 |
| 2018-06-18 06:00 | 40.7 | 31.0 | 16.4 | - | 34.2 | 24.1 |
| 2018-06-18 05:00 | 26.9 | 49.1 | 15.5 | - | 29.0 | 20.1 |
| 2018-06-18 04:00 | 33.5 | 45.6 | 17.0 | - | 26.2 | 18.2 |
| 2018-06-18 03:00 | 21.5 | 65.7 | 7.9 | - | 21.3 | 14.4 |
| 2018-06-18 02:00 | 16.9 | 75.4 | 6.9 | - | 21.5 | 14.7 |
| 2018-06-18 01:00 | 17.7 | 78.5 | 6.7 | - | 25.2 | 17.7 |
| 2018-06-18 00:00 | 26.2 | 74.0 | 7.8 | - | 28.2 | 19.2 |
| 2018-06-17 23:00 | 26.9 | 75.9 | 8.2 | - | 26.7 | 18.1 |
| 2018-06-17 22:00 | 24.7 | 84.6 | 7.4 | - | 27.6 | 18.7 |
| 2018-06-17 21:00 | 29.1 | 85.1 | 7.8 | - | 26.6 | 18.4 |
| 2018-06-17 20:00 | 34.7 | 76.8 | 7.5 | - | 25.7 | 16.7 |
| 2018-06-17 19:00 | 33.7 | 81.8 | 6.7 | - | 30.3 | 18.9 |
| 2018-06-17 18:00 | 26.3 | 96.0 | 7.7 | - | 31.4 | 19.6 |
| 2018-06-17 17:00 | 23.8 | 103.4 | 7.8 | - | 33.1 | 20.6 |
| 2018-06-17 16:00 | 25.4 | 103.2 | 8.3 | - | 30.4 | 19.0 |
| 2018-06-17 15:00 | 25.3 | 91.7 | 8.7 | - | 26.3 | 17.1 |
| 2018-06-17 14:00 | 26.3 | 85.7 | 7.8 | - | 22.5 | 14.7 |
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.
