Welcome to Environmental Protection Department Air Quality Health Index Website


AQHI Monthly Query
June 2021 (1.6-30.6)
Station Distribution of Hourly AQHI (Number of Hours)
LowModerateHighVery HighSerious
Central/Western639599130
Southern636674130
Eastern61886790
Kwun Tong646586100
Sham Shui Po628754130
Kwai Chung634694130
Tsuen Wan645592140
Tseung Kwan O64662480
Yuen Long641594160
Tuen Mun6425210160
Tung Chung65947680
Tai Po626763150
Sha Tin646585110
North636663150
Tap Mun632593120
Legend of CategoriesNumber of HoursPercent
Low957489%
Moderate9529%
High741%
Very High1862%
Serious00%
Station Distribution of Hourly AQHI (Number of Hours)
LowModerateHighVery HighSerious
Causeway Bay5731276140
Central622826100
Mong Kok626738130
Legend of CategoriesNumber of HoursPercent
Low182184%
Moderate28213%
High201%
Very High372%
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 31-07-2021