Central
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-10-16 15:00 | 110.9 | 20.4 | 6.3 | 1,206.0 | 28.1 | 18.3 |
| 2021-10-16 14:00 | 92.1 | 33.6 | 4.9 | 1,209.8 | 24.8 | 15.7 |
| 2021-10-16 13:00 | 88.8 | 30.7 | 5.4 | 1,207.8 | 26.2 | 16.3 |
| 2021-10-16 12:00 | 89.8 | 19.2 | 5.9 | 1,259.3 | 28.6 | 17.6 |
| 2021-10-16 11:00 | 81.4 | 8.9 | 6.0 | 1,278.3 | 24.8 | 15.5 |
| 2021-10-16 10:00 | 66.3 | 7.9 | 5.5 | 1,240.8 | 23.3 | 15.6 |
| 2021-10-16 09:00 | 59.4 | 5.9 | 5.5 | 1,222.8 | 26.4 | 17.0 |
| 2021-10-16 08:00 | 57.4 | 4.5 | 5.3 | 1,224.2 | 25.6 | 16.4 |
| 2021-10-16 07:00 | 52.6 | 4.9 | 4.5 | 1,132.0 | 18.5 | 9.7 |
| 2021-10-16 06:00 | 26.3 | 32.8 | 3.6 | 1,020.0 | 16.6 | 7.8 |
| 2021-10-16 05:00 | 24.0 | 36.5 | 3.6 | 1,016.4 | 16.9 | 9.5 |
| 2021-10-16 04:00 | 31.4 | 31.9 | 3.7 | 972.6 | 14.3 | 7.6 |
| 2021-10-16 03:00 | 24.2 | 41.0 | 3.7 | 956.1 | 15.1 | 8.2 |
| 2021-10-16 02:00 | 26.8 | 38.2 | 3.7 | 972.7 | 15.9 | 9.4 |
| 2021-10-16 01:00 | 39.6 | 28.5 | 3.8 | 985.3 | 13.1 | 8.9 |
| 2021-10-16 00:00 | 43.3 | 21.6 | 3.9 | 978.2 | 13.4 | 9.4 |
| 2021-10-15 23:00 | 58.9 | 4.2 | 5.3 | 1,225.1 | 11.2 | 8.1 |
| 2021-10-15 22:00 | 59.9 | 10.9 | 5.6 | 1,163.0 | 11.6 | 9.8 |
| 2021-10-15 21:00 | 59.8 | 7.1 | 5.2 | 1,211.3 | 13.0 | 11.0 |
| 2021-10-15 20:00 | 64.6 | 12.2 | 5.2 | 1,137.0 | 11.1 | 9.8 |
| 2021-10-15 19:00 | 64.5 | 9.9 | 5.8 | 1,135.8 | 8.2 | 7.1 |
| 2021-10-15 18:00 | 58.2 | 12.0 | 4.9 | 1,104.4 | 7.9 | 5.8 |
| 2021-10-15 17:00 | 61.2 | 13.1 | 4.8 | 1,083.4 | 6.8 | 4.6 |
| 2021-10-15 16:00 | 60.1 | 15.8 | 4.3 | 1,068.4 | 8.5 | 6.9 |
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.
