Welcome to Environmental Protection Department Air Quality Health Index Website


Central
Date TimeNO2O3SO2COPM10PM2.5
2023-11-29 22:0068.188.12.7589.164.235.3
2023-11-29 21:0077.686.73.1621.265.234.2
2023-11-29 20:00108.365.83.4699.167.635.0
2023-11-29 19:00113.555.43.5731.761.330.3
2023-11-29 18:00104.267.02.6617.961.731.1
2023-11-29 17:0080.280.62.2600.862.831.0
2023-11-29 16:0089.872.42.9616.760.928.3
2023-11-29 15:00100.353.93.7649.755.026.9
2023-11-29 14:0064.980.32.9585.359.029.9
2023-11-29 13:0071.575.92.4555.058.228.3
2023-11-29 12:0081.859.73.2568.556.226.0
2023-11-29 11:0078.864.22.1514.456.626.2
2023-11-29 10:0064.069.72.1494.358.326.7
2023-11-29 09:0078.856.92.0482.759.827.2
2023-11-29 08:0054.775.71.7458.755.724.3
2023-11-29 07:0029.9-1.6421.056.725.5
2023-11-29 06:0022.1104.01.5414.454.025.1
2023-11-29 05:0012.3119.21.1384.553.427.2
2023-11-29 04:0013.6121.41.1398.348.226.7
2023-11-29 03:0018.8119.40.8389.442.626.7
2023-11-29 02:0025.9112.30.8380.849.425.3
2023-11-29 01:0026.9119.10.7386.454.525.3
2023-11-29 00:0033.9110.31.0422.750.022.7
2023-11-28 23:0040.6102.51.5430.644.219.7
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.

Mobile Version | Desktop Version
Last revision date: 22:07 29-11-2023