Past 24 Hours Pollutant Concentration Summary
Tung Chung
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2021-06-21 04:00 | 0.4 | 66.4 | 4.5 | 117.3 | 18.9 | 10.4 |
| 2021-06-21 03:00 | 0.5 | 68.8 | 4.5 | 116.5 | 21.8 | 13.2 |
| 2021-06-21 02:00 | 2.0 | 64.1 | 4.5 | 116.5 | 20.2 | 11.4 |
| 2021-06-21 01:00 | - | - | - | - | 19.3 | 9.8 |
| 2021-06-21 00:00 | 2.3 | 61.5 | 4.4 | 116.4 | 20.8 | 12.0 |
| 2021-06-20 23:00 | 1.6 | 65.4 | 4.3 | 123.4 | 18.5 | 10.0 |
| 2021-06-20 22:00 | 3.0 | 61.9 | 4.4 | 131.2 | 20.9 | 12.2 |
| 2021-06-20 21:00 | 2.2 | 60.2 | 4.3 | 131.3 | 16.7 | 7.9 |
| 2021-06-20 20:00 | 2.4 | 61.6 | 4.5 | 119.0 | 17.4 | 9.8 |
| 2021-06-20 19:00 | 2.6 | 59.6 | 4.4 | 126.2 | 18.2 | 11.3 |
| 2021-06-20 18:00 | 4.0 | 58.5 | 4.8 | 116.3 | 14.8 | 7.9 |
| 2021-06-20 17:00 | 6.7 | 58.1 | 4.7 | 117.6 | 15.1 | 7.7 |
| 2021-06-20 16:00 | 5.5 | 65.0 | 4.9 | 135.8 | 17.7 | 9.3 |
| 2021-06-20 15:00 | 5.1 | 69.2 | 4.9 | 126.7 | 21.2 | 12.4 |
| 2021-06-20 14:00 | 7.8 | 70.1 | 4.7 | 147.8 | 22.1 | 14.3 |
| 2021-06-20 13:00 | 8.1 | 61.5 | 4.8 | 138.0 | 20.5 | 12.5 |
| 2021-06-20 12:00 | 8.3 | 61.0 | 4.6 | 143.4 | 17.2 | 9.8 |
| 2021-06-20 11:00 | 11.4 | 58.5 | 4.6 | 207.8 | 17.0 | 9.7 |
| 2021-06-20 10:00 | 7.7 | 60.2 | 4.5 | 129.5 | 17.4 | 10.8 |
| 2021-06-20 09:00 | 9.9 | 52.9 | 4.5 | 126.3 | 17.0 | 9.8 |
| 2021-06-20 08:00 | 10.3 | 49.5 | 4.5 | 133.2 | 16.7 | 8.9 |
| 2021-06-20 07:00 | 8.9 | 51.9 | 4.1 | 169.7 | 18.0 | 10.8 |
| 2021-06-20 06:00 | 5.8 | 57.8 | 4.4 | 130.0 | 17.2 | 9.0 |
| 2021-06-20 05:00 | 2.7 | 62.2 | 4.3 | 119.1 | 16.4 | 8.6 |
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.