EPD

Back Home

Past 24 Hours Pollutant Concentration Summary

North
Date TimeNO2O3SO2COPM10PM2.5
2021-12-02 07:0055.738.24.6511.333.918.7
2021-12-02 06:0028.859.14.3409.330.916.9
2021-12-02 05:0029.648.43.9439.629.210.3
2021-12-02 04:0020.959.64.1504.826.75.8
2021-12-02 03:0031.257.55.3548.831.69.5
2021-12-02 02:0039.157.85.9453.436.712.9
2021-12-02 01:0044.752.75.7479.438.714.1
2021-12-02 00:0041.358.96.0500.439.912.9
2021-12-01 23:0034.568.15.9470.343.715.0
2021-12-01 22:0066.345.25.2563.048.718.3
2021-12-01 21:0099.014.15.4772.048.614.2
2021-12-01 20:0099.511.55.3782.446.413.5
2021-12-01 19:00110.721.64.9835.945.014.5
2021-12-01 18:0068.957.54.2528.947.110.4
2021-12-01 17:0055.476.44.0548.444.86.7
2021-12-01 16:0045.085.43.7457.043.09.9
2021-12-01 15:0031.592.53.4429.043.912.8
2021-12-01 14:0041.779.83.1462.445.313.5
2021-12-01 13:0034.781.93.1503.946.412.1
2021-12-01 12:0036.875.73.6474.444.310.6
2021-12-01 11:0039.165.23.9442.640.312.0
2021-12-01 10:0029.969.04.0430.635.913.0
2021-12-01 09:0035.862.34.3468.034.211.5
2021-12-01 08:0039.657.53.8495.734.610.0
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.