Central
Date TimeNO2O3SO2COPM10PM2.5
2024-04-20 17:0038.931.52.1374.128.719.9
2024-04-20 16:0031.839.92.1292.931.519.6
2024-04-20 15:0053.524.23.3416.939.523.4
2024-04-20 14:0064.416.43.3528.630.918.1
2024-04-20 13:0053.424.12.8444.328.516.4
2024-04-20 12:0060.321.43.2446.532.717.7
2024-04-20 11:0062.113.63.5464.125.914.2
2024-04-20 10:0066.910.23.2431.431.819.8
2024-04-20 09:0064.28.13.6399.328.419.0
2024-04-20 08:0056.412.22.6348.427.117.6
2024-04-20 07:0039.822.52.0242.822.415.1
2024-04-20 06:0025.638.01.6218.219.213.0
2024-04-20 05:0027.437.62.0234.620.813.9
2024-04-20 04:0033.329.32.0316.720.013.1
2024-04-20 03:00-36.4--18.611.7
2024-04-20 02:0025.735.11.7266.217.410.5
2024-04-20 01:0032.630.41.9291.521.813.4
2024-04-20 00:0047.916.32.4373.223.015.2
2024-04-19 23:0053.413.22.5431.024.115.4
2024-04-19 22:0049.311.32.5502.223.614.6
2024-04-19 21:0050.315.42.6462.029.219.2
2024-04-19 20:0053.915.53.2458.126.818.0
2024-04-19 19:0071.18.85.0500.227.718.1
2024-04-19 18:0068.212.04.0490.029.117.5
Remarks:

(1) Time shown is in Hong Kong time.

(2) Concentration shown is in microgram per cubic metre (µg/m3).

(3) Abbreviation:
NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates

(4) The pollutant concentration is based on real time data taken directly from EPD's Air Quality Monitoring Network.

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Last revision date: 17:07 20-04-2024