Welcome to Environmental Protection Department Air Quality Health Index Website


FORECAST of Health Risk
25-04-2024
Today A.M.
Today P.M.
General StationsLowLow to Moderate
Roadside StationsLow to ModerateLow to Moderate
Health RiskLowModerateHighVery HighSerious
AQHI Scale1234567891010+
Air Quality Health Index
06:00 25-04-2024AQHIHealth Risk
General StationsCentral/Western3Link to past 24 hrs AQHI trendLow
Southern3Link to past 24 hrs AQHI trendLow
Eastern4Link to past 24 hrs AQHI trendModerate
Kwun Tong4*Link to past 24 hrs AQHI trendModerate
Sham Shui Po3Link to past 24 hrs AQHI trendLow
Kwai Chung4*Link to past 24 hrs AQHI trendModerate
Tsuen Wan4Link to past 24 hrs AQHI trendModerate
Tseung Kwan O4Link to past 24 hrs AQHI trendModerate
Yuen Long3Link to past 24 hrs AQHI trendLow
Tuen Mun3Link to past 24 hrs AQHI trendLow
Tung Chung3Link to past 24 hrs AQHI trendLow
Tai Po4Link to past 24 hrs AQHI trendModerate
Sha Tin4*Link to past 24 hrs AQHI trendModerate
North4Link to past 24 hrs AQHI trendModerate
Tap Mun4Link to past 24 hrs AQHI trendModerate
Roadside StationsCauseway Bay3*Link to past 24 hrs AQHI trendLow
Central3Link to past 24 hrs AQHI trendLow
Mong Kok4Link to past 24 hrs AQHI trendModerate
Remarks:

(1) Time shown is in Hong Kong time.

(2) Concentration shown is in microgram per cubic metre (µg/m3).

(3) Abbreviation:
NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates

(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.

(6) In case of equipment or station suspension due to repair and maintenance, the data collection for calculation of AQHI at station will be affected, the data of similar stations will then be adopted. Such AQHI will be shown with an asterisk.

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Last revision date: 06:07 25-04-2024