Central/Western
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-03-08 08:00 | 31.2 | 41.9 | 1.9 | - | 21.8 | 13.4 |
| 2021-03-08 07:00 | 19.4 | 52.7 | 1.9 | - | 19.1 | 13.2 |
| 2021-03-08 06:00 | 11.5 | 60.0 | 2.0 | - | 20.5 | 15.4 |
| 2021-03-08 05:00 | 8.9 | 61.6 | 1.9 | - | 19.7 | 13.7 |
| 2021-03-08 04:00 | 8.5 | 62.4 | 1.9 | - | 18.1 | 11.6 |
| 2021-03-08 03:00 | 11.9 | 62.1 | 1.9 | - | 23.3 | 18.6 |
| 2021-03-08 02:00 | 12.9 | 67.3 | 1.9 | - | 17.2 | 15.1 |
| 2021-03-08 01:00 | 18.3 | 55.0 | 1.9 | - | 12.2 | 10.1 |
| 2021-03-08 00:00 | 24.3 | 29.0 | 2.0 | - | 18.3 | 14.2 |
| 2021-03-07 23:00 | 29.2 | 30.8 | 1.9 | - | 15.0 | 12.6 |
| 2021-03-07 22:00 | 26.3 | 38.6 | 1.7 | - | 16.8 | 14.4 |
| 2021-03-07 21:00 | 34.3 | 28.8 | 1.9 | - | 20.3 | 16.5 |
| 2021-03-07 20:00 | 35.4 | 25.8 | 1.9 | - | 20.7 | 16.8 |
| 2021-03-07 19:00 | 35.4 | 28.1 | 1.9 | - | 15.8 | 13.9 |
| 2021-03-07 18:00 | 31.1 | 31.2 | 1.9 | - | 14.3 | 12.3 |
| 2021-03-07 17:00 | 32.5 | 26.6 | 1.9 | - | 14.1 | 11.8 |
| 2021-03-07 16:00 | 26.8 | 38.3 | 1.9 | - | 16.3 | 12.3 |
| 2021-03-07 15:00 | 27.2 | 41.5 | 1.9 | - | 23.1 | 17.7 |
| 2021-03-07 14:00 | 26.5 | 50.3 | 2.3 | - | 21.4 | 15.8 |
| 2021-03-07 13:00 | 27.1 | 53.8 | 2.4 | - | 17.6 | 11.9 |
| 2021-03-07 12:00 | 26.2 | 51.4 | 2.8 | - | 16.4 | 11.4 |
| 2021-03-07 11:00 | 29.8 | 45.9 | 2.9 | - | 15.6 | 10.7 |
| 2021-03-07 10:00 | 20.7 | 53.1 | 2.4 | - | 15.6 | 9.7 |
| 2021-03-07 09:00 | 16.3 | 62.9 | 2.5 | - | 15.0 | 8.5 |
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.
(5) Owing to urgent repair and maintenance, monitoring of PM10 & PM2.5 at Mongkok roadside air quality monitoring station have been temporarily suspended until further notice. We apologize for any inconvenience caused.
