Welcome to Environmental Protection Department Air Quality Health Index Website


AQHI Monthly Query
January 2024 (1.1-31.1)
Station Distribution of Hourly AQHI (Number of Hours)
LowModerateHighVery HighSerious
Central/Western239500500
Southern2145131700
Eastern227516100
Kwun Tong2504831010
Sham Shui Po251485800
Kwai Chung2814501300
Tsuen Wan313424700
Tseung Kwan O2654641500
Yuen Long3633611190
Tuen Mun2614571484
Tung Chung415318551
Tai Po333403530
Sha Tin327413400
North345392160
Tap Mun3813341500
Legend of CategoriesNumber of HoursPercent
Low446540%
Moderate651358%
High1311%
Very High320%
Serious50%
Station Distribution of Hourly AQHI (Number of Hours)
LowModerateHighVery HighSerious
Causeway Bay1605681420
Central2185161000
Mong Kok2125141710
Legend of CategoriesNumber of HoursPercent
Low59026%
Moderate159872%
High412%
Very High30%
Serious00%
Remarks:

(1) The total number of hourly AQHI readings at a station may be less than the total number of hours in the month because sometimes measurement may have to be suspended due to maintenance work at that station.

Mobile Version | Desktop Version
Last revision date: 00:07 01-03-2024