Welcome to Environmental Protection Department Air Quality Health Index Website


FORECAST of Health Risk
01-05-2024
Tomorrow A.M.
Tomorrow P.M.
General StationsLowLow to Moderate
Roadside StationsLowLow to Moderate
Health RiskLowModerateHighVery HighSerious
AQHI Scale1234567891010+
Air Quality Health Index
18:00 01-05-2024AQHIHealth Risk
General StationsCentral/Western4Link to past 24 hrs AQHI trendModerate
Southern4Link to past 24 hrs AQHI trendModerate
Eastern4Link to past 24 hrs AQHI trendModerate
Kwun Tong4Link to past 24 hrs AQHI trendModerate
Sham Shui Po4Link to past 24 hrs AQHI trendModerate
Kwai Chung4Link to past 24 hrs AQHI trendModerate
Tsuen Wan5Link to past 24 hrs AQHI trendModerate
Tseung Kwan O4Link to past 24 hrs AQHI trendModerate
Yuen Long4Link to past 24 hrs AQHI trendModerate
Tuen Mun4Link to past 24 hrs AQHI trendModerate
Tung Chung4Link to past 24 hrs AQHI trendModerate
Tai Po4Link to past 24 hrs AQHI trendModerate
Sha Tin4Link to past 24 hrs AQHI trendModerate
North3Link to past 24 hrs AQHI trendLow
Tap Mun4Link to past 24 hrs AQHI trendModerate
Roadside StationsCauseway Bay4Link to past 24 hrs AQHI trendModerate
Central4Link to past 24 hrs AQHI trendModerate
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) The AQHI information is based on real time data taken directly from EPD's Air Quality Monitoring Network.

(5) 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: 18:07 01-05-2024