Welcome to Environmental Protection Department Air Quality Health Index Website

(At 2021-11-29 15:00)

Added Health Risk
Contribution by each pollutant on the added health risk (percentage)
7.64 0.088 (1%) 5.502 (72%) 1.048 (14%) 0.999 (13%)

(1) Time shown is in Hong Kong time.

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

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

(4) 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.

(5) Owing to urgent repair and maintenance,  the monitoring of Shatin air quality monitoring station have been temporarily suspended until further notice. We apologize for any inconvenience caused.

Last revision date: 15:07 29-11-2021