Past 24 Hours Pollutant Concentration Summary
Yuen Long
| Date Time | NO2 | O3 | SO2 | CO | PM10 | PM2.5 |
|---|---|---|---|---|---|---|
| 2022-09-27 08:00 | 22.9 | 36.8 | 4.6 | 608.2 | 16.7 | 10.4 |
| 2022-09-27 07:00 | 17.3 | 43.4 | 3.9 | 626.5 | 16.2 | 10.1 |
| 2022-09-27 06:00 | 1.8 | 57.9 | 3.3 | 569.5 | 17.0 | 10.7 |
| 2022-09-27 05:00 | 0.0 | 69.8 | 3.0 | 556.3 | 19.7 | 12.1 |
| 2022-09-27 04:00 | 0.0 | 76.8 | 2.8 | 564.6 | 18.5 | 11.1 |
| 2022-09-27 03:00 | 0.0 | 85.4 | 2.8 | 541.6 | 17.0 | 9.2 |
| 2022-09-27 02:00 | 0.0 | 77.3 | 2.7 | 585.3 | 17.2 | 8.5 |
| 2022-09-27 01:00 | 0.0 | 80.7 | 2.6 | 575.6 | 17.2 | 7.5 |
| 2022-09-27 00:00 | 0.0 | 85.9 | 2.8 | 571.0 | 14.5 | 5.0 |
| 2022-09-26 23:00 | 3.4 | 81.2 | 3.0 | 565.5 | 14.7 | 5.7 |
| 2022-09-26 22:00 | 5.2 | 87.2 | 3.1 | 569.3 | 16.6 | 6.1 |
| 2022-09-26 21:00 | 4.8 | 105.0 | 3.4 | 585.8 | 21.5 | 9.1 |
| 2022-09-26 20:00 | 15.9 | 106.3 | 3.8 | 636.6 | 29.9 | 15.4 |
| 2022-09-26 19:00 | 26.1 | 123.3 | 4.0 | 700.1 | 31.8 | 15.2 |
| 2022-09-26 18:00 | 31.1 | 133.9 | 4.0 | 677.2 | 36.1 | 16.9 |
| 2022-09-26 17:00 | 31.9 | 172.2 | 4.3 | 708.3 | 54.1 | 31.7 |
| 2022-09-26 16:00 | 24.4 | 220.6 | 4.3 | 729.7 | 94.2 | 75.2 |
| 2022-09-26 15:00 | 18.0 | 221.2 | 4.4 | 743.8 | 74.7 | 56.0 |
| 2022-09-26 14:00 | 24.0 | 199.8 | 4.2 | 707.4 | 43.6 | 22.4 |
| 2022-09-26 13:00 | 13.9 | 188.4 | 4.2 | 672.6 | 40.3 | 19.3 |
| 2022-09-26 12:00 | 11.0 | 165.5 | 4.5 | 660.3 | 39.8 | 18.8 |
| 2022-09-26 11:00 | 16.8 | 128.5 | 4.7 | 726.0 | 36.0 | 16.6 |
| 2022-09-26 10:00 | 16.0 | 114.3 | 4.9 | 693.4 | 36.6 | 18.6 |
| 2022-09-26 09:00 | 13.2 | 91.6 | 3.8 | 656.9 | 29.3 | 13.7 |
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.