FORECAST of Health Risk
Tomorrow A.M.
Tomorrow P.M.
General StationsLowLow to Moderate
Roadside StationsLowLow to Moderate
Health Risk Low Moderate High Very High Serious
AQHI Scale 1 2 3 4 5 6 7 8 9 10 10+
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(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 urgent repair and maintenance, PM10 and PM2.5 monitoring at Mong Kok roadside air quality monitoring station have been temporarily suspended until further notice. We apologize for any inconvenience caused.

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Last revision date:18:07 18-08-2018