Air Quality in Hong Kong


Since the Air Quality Health Index (AQHI) issued by Hong Kong Environmental Protection Department is not comparable to other regions in the world, Weather Underground of Hong Kong refers to the Air Quality Index (AQI) issued by U.S. Environmental Protection Agency and calculates the Air Quality Index based on air pollutant concentration data issued by Hong Kong Environmenal Protection Department.

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Time: 30 Dec 2024 19:00:00

StationPollutant Concentration (microgram/m3)/AQIAQHIAQI
NO2O3SO2COPM10PM2.5
Central/Western92.1/46126.4/658.3/4-/-93.3/6959.9 /1538153
Kwun Tong208.0/10212.7/53.3/1-/-87.2/6658.2 /1528152
Tai Po112.5/5782.7/353.5/1-/-72.1/5949.5 /1357135
Tung Chung113.1/5778.0/333.0/1985.9/990.7/6868.7 /1578157
Eastern102.4/5198.4/422.9/1-/-77.7/6254.2 /1477147
Sha Tin180.0/9520.0/83.2/1-/-90.3/6860.6 /1537153
Tseung Kwan O140.7/7352.7/224.4/21001.1/965.3/5640.1 /1127112
Tap Mun21.2/10169.0/1272.7/1568.1/559.2/5341.1 /1148127
Yuen Long187.4/9917.2/76.9/31418.2/14119.9/8373.5 /1608160
Tuen Mun185.1/9825.0/1012.8/61243.7/12144.5/9575.1 /1618161
Kwai Chung223.4/10417.3/713.4/7-/-100.2/7369.1 /1589158
Sham Shui Po153.0/8060.1/2511.7/6-/-98.8/7267.1 /1568156
Tsuen Wan144.3/7546.7/203.0/11023.3/1090.7/6864.1 /1558155
Causeway Bay223.1/10420.1/813.0/71564.4/15133.9/9090.0 /1689168
Central212.9/10320.1/88.9/41133.7/11109.6/7875.6 /1618161
Mong Kok209.4/10215.8/67.8/4986.9/989.5/6866.0 /1568156

* Missing PM2.5 data from Environmental Protection Department

Air Quality Index (AQI)CategoryMeaning
0-50GoodAir pollution risk is low.
51-100ModerateAir quality is acceptable.
101-150Unhealthy for high-risk groupHigh-risk group may have health effects. General public is not affected.
151-200UnhealthyHigh-risk group may have more serious health effects. Some of the general public may have health effects.
201-300Very UnhealthyGeneral public have health effects.
301-500HazardousSome of the general public may have more serious health effects.

Air Quality Health Index (AQHI)Health Risk
1-3Low
4-6Moderate
7High
8-10Very high
10+Serious