Welcome to Environmental Protection Department Air Quality Health Index Website


Central
Date TimeNO2O3SO2COPM10PM2.5
2024-04-29 22:0050.36.53.2591.723.314.8
2024-04-29 21:0051.07.03.3606.221.914.0
2024-04-29 20:0056.55.73.9540.124.616.0
2024-04-29 19:0061.94.24.2483.424.616.5
2024-04-29 18:0056.48.73.7441.824.215.1
2024-04-29 17:0066.87.44.5441.921.512.8
2024-04-29 16:0069.17.84.5464.428.418.2
2024-04-29 15:0072.17.24.4472.230.520.6
2024-04-29 14:0063.96.43.9576.335.725.9
2024-04-29 13:0074.56.05.4619.234.723.8
2024-04-29 12:0070.84.45.6969.625.516.1
2024-04-29 11:0064.55.63.9497.829.618.8
2024-04-29 10:0071.83.65.6767.934.418.8
2024-04-29 09:0080.43.14.5567.327.911.8
2024-04-29 08:0064.89.02.5405.221.18.9
2024-04-29 07:0045.827.51.8282.517.76.6
2024-04-29 06:0040.233.32.6284.218.95.6
2024-04-29 05:0041.433.42.7277.819.49.8
2024-04-29 04:0028.242.41.6298.225.111.2
2024-04-29 03:0025.150.91.8275.320.49.4
2024-04-29 02:0029.749.61.6270.517.67.1
2024-04-29 01:0034.951.91.8274.916.76.5
2024-04-29 00:0037.453.52.1274.815.27.0
2024-04-28 23:0040.850.81.9297.318.18.4
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.

Mobile Version | Desktop Version
Last revision date: 22:07 29-04-2024