Yuen Long
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2023-05-30 01:00 | - | - | - | - | 26.4 | 15.1 |
| 2023-05-30 00:00 | 50.2 | 42.3 | 6.8 | 674.1 | 26.1 | 14.3 |
| 2023-05-29 23:00 | 51.1 | 57.3 | 6.5 | 712.8 | 31.3 | 18.2 |
| 2023-05-29 22:00 | 48.9 | 83.4 | 6.6 | 704.4 | 34.5 | 18.7 |
| 2023-05-29 21:00 | 47.3 | 107.6 | 6.8 | 665.6 | 36.1 | 18.3 |
| 2023-05-29 20:00 | 61.2 | 110.4 | 6.3 | 669.8 | 40.1 | 19.6 |
| 2023-05-29 19:00 | 69.6 | 152.9 | 8.3 | 690.2 | 51.7 | 25.3 |
| 2023-05-29 18:00 | 59.5 | 188.5 | 9.3 | 689.2 | 52.2 | 25.5 |
| 2023-05-29 17:00 | 62.9 | 188.1 | 7.4 | 646.6 | 50.5 | 23.0 |
| 2023-05-29 16:00 | 43.0 | 185.9 | 6.8 | 589.9 | 44.2 | 20.0 |
| 2023-05-29 15:00 | 41.2 | 152.5 | 6.7 | 590.1 | 36.0 | 17.6 |
| 2023-05-29 14:00 | 36.9 | 112.8 | 6.7 | 572.3 | 31.4 | 14.3 |
| 2023-05-29 13:00 | 37.0 | 91.3 | 7.4 | 569.0 | 32.8 | 12.5 |
| 2023-05-29 12:00 | 46.5 | 67.0 | 8.5 | 604.8 | 32.8 | 14.1 |
| 2023-05-29 11:00 | 49.5 | 51.2 | 8.4 | 580.6 | 28.5 | 12.0 |
| 2023-05-29 10:00 | 47.9 | 43.6 | 8.5 | 598.5 | 25.6 | 11.7 |
| 2023-05-29 09:00 | 38.8 | 47.0 | 6.9 | 580.0 | 23.9 | 11.9 |
| 2023-05-29 08:00 | 48.7 | 33.8 | 6.2 | 660.3 | 24.1 | 13.0 |
| 2023-05-29 07:00 | 46.9 | 28.6 | 5.5 | 681.9 | 21.5 | 11.8 |
| 2023-05-29 06:00 | 40.0 | 22.5 | 5.4 | 639.6 | 21.8 | 12.8 |
| 2023-05-29 05:00 | 32.4 | 30.1 | 5.8 | 632.7 | 22.7 | 11.1 |
| 2023-05-29 04:00 | 49.6 | 26.2 | 6.6 | 598.9 | 27.7 | 12.6 |
| 2023-05-29 03:00 | 48.5 | 26.4 | 5.9 | 579.3 | 21.8 | 11.7 |
| 2023-05-29 02:00 | 53.2 | 11.1 | 5.6 | 708.3 | 23.2 | 12.6 |
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.
