Central
Date TimeNO2O3SO2COPM10PM2.5
2022-01-24 23:0036.445.62.2848.416.59.9
2022-01-24 22:0042.845.82.3842.517.010.8
2022-01-24 21:0050.939.72.8908.022.415.9
2022-01-24 20:0069.331.13.3954.529.322.7
2022-01-24 19:0083.826.44.9983.133.527.4
2022-01-24 18:0086.532.14.51,001.438.131.8
2022-01-24 17:0072.038.03.5943.433.226.4
2022-01-24 16:0081.728.74.1988.327.620.8
2022-01-24 15:0075.534.63.91,041.629.223.2
2022-01-24 14:0077.538.34.01,112.530.923.6
2022-01-24 13:0086.718.65.41,119.729.023.3
2022-01-24 12:0080.113.07.41,122.830.125.1
2022-01-24 11:0080.68.09.21,044.432.328.6
2022-01-24 10:0073.28.68.31,020.535.931.3
2022-01-24 09:0084.92.99.61,164.934.729.4
2022-01-24 08:0075.12.57.11,138.424.920.2
2022-01-24 07:0070.62.44.51,072.324.618.8
2022-01-24 06:0089.41.39.61,114.434.524.7
2022-01-24 05:0090.91.59.21,014.827.619.6
2022-01-24 04:0094.01.910.7997.629.521.4
2022-01-24 03:0095.21.610.7983.726.818.6
2022-01-24 02:0095.92.510.41,054.430.420.9
2022-01-24 01:0097.02.411.1951.734.322.9
2022-01-24 00:0097.32.57.11,045.027.418.9
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: 23:07 24-01-2022