Tung Chung
Date TimeNO2O3SO2COPM10PM2.5
2019-09-20 19:0054.1141.16.3515.842.226.0
2019-09-20 18:0052.5151.06.5505.440.823.7
2019-09-20 17:0064.7172.47.4559.345.526.7
2019-09-20 16:0061.1217.68.4587.351.130.6
2019-09-20 15:0053.7223.18.3578.150.828.9
2019-09-20 14:0054.8234.68.8590.754.230.8
2019-09-20 13:0071.6202.611.0609.155.331.5
2019-09-20 12:0082.1136.614.9667.053.331.6
2019-09-20 11:0071.195.910.4662.953.134.2
2019-09-20 10:0070.867.99.3651.749.132.6
2019-09-20 09:0055.040.28.5653.539.929.7
2019-09-20 08:0043.29.34.2729.734.928.0
2019-09-20 07:0045.49.33.5705.535.428.8
2019-09-20 06:0035.614.42.9616.438.832.8
2019-09-20 05:0025.526.62.7609.436.129.9
2019-09-20 04:0027.330.53.1606.535.629.4
2019-09-20 03:0018.744.33.2610.134.227.9
2019-09-20 02:0019.348.83.4617.538.832.9
2019-09-20 01:00----39.032.8
2019-09-20 00:0032.755.42.9626.839.532.6
2019-09-19 23:0046.455.23.5681.538.831.8
2019-09-19 22:0043.386.83.8695.540.033.0
2019-09-19 21:0033.889.13.5669.542.936.6
2019-09-19 20:0034.8122.04.2650.842.934.6
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.