Welcome to Environmental Protection Department Air Quality Health Index Website


(At 2024-04-27 05:00)

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Added Health Risk
(FAQs)
Contribution by each pollutant on the added health risk (percentage)
SO2 NO2 O3 PM
1.70 0.017 (1%) 0.233 (14%) 1.015 (60%) 0.437 (26%)
Remarks:

(1) Time shown is in Hong Kong time.

(2) The total percentage may not be equal to 100% due to rounding.

(3) Abbreviation:
SO2 - sulphur dioxide, NO2 - nitrogen dioxide, O3 - ozone,
PM – respirable suspended particulates (PM10) or fine suspended particulates (PM2.5), whichever poses a higher health risk.

(4) For more information on the Air Quality Health Index, please visit <What's AQHI>.

(5) The AQHI information is based on real time data taken directly from EPD's Air Quality Monitoring Network.

Last revision date: 05:07 27-04-2024