Welcome to Environmental Protection Department Air Quality Health Index Website


Southern
Date TimeNO2O3SO2COPM10PM2.5
2021-11-30 00:00106.38.22.8498.430.417.5
2021-11-29 23:00113.54.92.7499.139.123.6
2021-11-29 22:0078.430.81.4440.538.122.7
2021-11-29 21:0089.225.81.3468.030.013.8
2021-11-29 20:0074.738.51.3423.532.714.4
2021-11-29 19:0053.959.61.5371.037.019.4
2021-11-29 18:0069.972.74.0408.138.119.9
2021-11-29 17:0082.580.43.6410.937.617.6
2021-11-29 16:0042.6116.42.8366.635.916.6
2021-11-29 15:0040.9108.53.8335.634.014.2
2021-11-29 14:0060.569.34.3358.828.812.7
2021-11-29 13:0060.259.16.0363.927.014.4
2021-11-29 12:0045.167.32.9387.535.818.9
2021-11-29 11:0048.858.02.8425.837.623.0
2021-11-29 10:0060.642.23.8463.629.423.6
2021-11-29 09:0062.438.23.6523.026.520.2
2021-11-29 08:0048.437.33.0498.827.921.4
2021-11-29 07:0027.964.82.4417.628.219.7
2021-11-29 06:0017.858.41.4407.925.615.9
2021-11-29 05:00-52.80.8406.823.512.0
2021-11-29 04:0012.959.30.5368.332.213.1
2021-11-29 03:0017.362.50.7381.734.313.6
2021-11-29 02:0017.776.90.9386.134.917.1
2021-11-29 01:0018.294.71.7391.135.118.2
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.

Last revision date: 00:07 30-11-2021