Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2021-05-18 16:0065.915.17.8566.339.419.4
2021-05-18 15:0075.815.27.9563.665.324.4
2021-05-18 14:0053.625.36.9477.925.715.4
2021-05-18 13:0038.730.95.9461.824.014.5
2021-05-18 12:0051.027.36.9500.325.515.3
2021-05-18 11:0056.321.27.3525.527.716.3
2021-05-18 10:0035.726.16.2454.418.29.3
2021-05-18 09:0039.118.36.9487.312.46.0
2021-05-18 08:0051.416.87.9493.915.310.3
2021-05-18 07:0032.823.05.5515.514.39.3
2021-05-18 06:0022.830.44.9458.310.77.9
2021-05-18 05:0019.827.15.5382.415.311.7
2021-05-18 04:00-29.0--20.016.7
2021-05-18 03:0024.726.55.2377.414.09.9
2021-05-18 02:00-21.15.3755.216.011.3
2021-05-18 01:0029.419.15.7448.614.99.5
2021-05-18 00:0028.5-5.3449.125.421.7
2021-05-17 23:0032.722.56.0481.129.421.8
2021-05-17 22:0055.912.97.2646.017.010.4
2021-05-17 21:0027.123.65.1497.418.512.2
2021-05-17 20:0037.320.56.1520.825.317.0
2021-05-17 19:0057.615.27.9566.733.421.3
2021-05-17 18:0063.012.89.9695.035.420.6
2021-05-17 17:0070.214.47.5656.531.217.5
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.

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Last revision date: 16:07 18-05-2021