Welcome to Environmental Protection Department Air Quality Health Index Website

FORECAST of Health Risk
Today A.M.
Today P.M.
General StationsLow to ModerateLow to Moderate
Roadside StationsLow to ModerateLow to Moderate
Health RiskLowModerateHighVery HighSerious
AQHI Scale1234567891010+

(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 hourly reported AQHI is for short term health risk communication; for health risks of long-term exposure of the air quality, please refer to the Annual Air Quality Index(Annual AQI).

(4) In case of station or equipment suspension due to maintenance, the data collection for calculation of AQHI at station will be affected, the data of most similar stations will then be adopted. Such AQHI will be shown in italics.  

(5) Owing to the maintenance works, the operation of Tai Po Air Quality Monitoring Station will be temporarily suspended on 28 October 2021.  We apologize for any inconvenience caused.

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Last revision date: 02:07 26-10-2021