Past 24 Hours Pollutant Concentration Summary
Mong Kok
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-06-24 01:00 | 78.5 | 2.0 | 3.0 | 1,231.3 | 14.5 | 10.5 |
| 2021-06-24 00:00 | 80.6 | 2.0 | 3.1 | 1,278.2 | 13.9 | 10.1 |
| 2021-06-23 23:00 | 84.6 | 4.5 | 2.9 | 1,298.2 | 10.2 | 7.8 |
| 2021-06-23 22:00 | 67.2 | 15.1 | 1.6 | 1,077.2 | 9.7 | 7.2 |
| 2021-06-23 21:00 | 73.6 | 15.3 | 2.1 | 1,112.0 | 17.7 | 14.6 |
| 2021-06-23 20:00 | 98.3 | 5.7 | 4.4 | 1,269.4 | 11.6 | 9.2 |
| 2021-06-23 19:00 | 96.8 | 3.1 | 4.2 | 1,125.4 | 11.1 | 8.9 |
| 2021-06-23 18:00 | 88.9 | 5.0 | 3.0 | 1,172.3 | 9.2 | 6.3 |
| 2021-06-23 17:00 | 91.5 | 9.5 | 3.5 | 1,059.0 | 6.6 | 4.5 |
| 2021-06-23 16:00 | 82.4 | 10.2 | 3.1 | 1,077.5 | 7.5 | 5.6 |
| 2021-06-23 15:00 | 84.0 | 8.5 | 3.2 | 1,097.8 | 9.2 | 7.0 |
| 2021-06-23 14:00 | 95.4 | 9.1 | 3.5 | 1,055.2 | 15.7 | 11.4 |
| 2021-06-23 13:00 | 88.4 | 13.1 | 3.7 | 1,060.4 | 15.8 | 12.7 |
| 2021-06-23 12:00 | 91.9 | 7.5 | 6.1 | 1,061.2 | 20.6 | 15.8 |
| 2021-06-23 11:00 | 92.2 | 6.1 | 7.5 | 1,204.4 | 20.0 | 14.4 |
| 2021-06-23 10:00 | 90.8 | 3.0 | 7.4 | 1,144.7 | 17.5 | 13.3 |
| 2021-06-23 09:00 | 89.9 | 2.9 | 8.5 | 1,123.0 | 13.7 | 10.5 |
| 2021-06-23 08:00 | 66.5 | 8.6 | 5.2 | 1,006.1 | 10.8 | 7.9 |
| 2021-06-23 07:00 | 69.1 | 7.5 | 5.7 | 926.3 | 12.1 | 9.9 |
| 2021-06-23 06:00 | 74.5 | 1.9 | 6.4 | 986.2 | 12.1 | 10.1 |
| 2021-06-23 05:00 | 68.5 | 3.2 | 4.6 | 919.7 | 9.6 | 8.0 |
| 2021-06-23 04:00 | 70.3 | 2.6 | 4.5 | 909.3 | 10.3 | 7.7 |
| 2021-06-23 03:00 | 66.3 | 6.5 | 3.6 | 902.4 | 10.4 | 6.9 |
| 2021-06-23 02:00 | 74.6 | 3.3 | 4.0 | 907.5 | 10.9 | 8.2 |
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.