Welcome to Environmental Protection Department Air Quality Health Index Website


(At 2024-04-23 23:00)

Central/Western
Added Health Risk
(FAQs)
Contribution by each pollutant on the added health risk (percentage)
SO2 NO2 O3 PM
5.05 0.100 (2%) 2.739 (54%) 1.765 (35%) 0.447 (9%)
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 and Added Health Risk, 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: 23:07 23-04-2024