HongKong Air Pollution: Real-time Air Quality Index (AQI)

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LB:Baalbak AQI: LB:Baalbak Real-time Air Quality Index (AQI).
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Updated on Monday 14:00
temperature: 32°C
currentpast 2 daysminmax
PM2.5 AQI
53HongKong PM25 (fine particulate matter) measured by Hong Kong Environmental Protection Department - 空氣質素健康指數單張及海報. Values are converted to the US EPA AQI standard.47106
PM10 AQI
15HongKong PM10 (respirable particulate matter) measured by Hong Kong Environmental Protection Department - 空氣質素健康指數單張及海報. Values are converted to the US EPA AQI standard.1470
O3 AQI
15HongKong O3 (ozone) measured by Hong Kong Environmental Protection Department - 空氣質素健康指數單張及海報. Values are converted to the US EPA AQI standard.774
NO2 AQI
16HongKong NO2 (nitrogen dioxide) measured by Hong Kong Environmental Protection Department - 空氣質素健康指數單張及海報. Values are converted to the US EPA AQI standard.554
SO2 AQI
1HongKong SO2 (sulfur dioxide) measured by Hong Kong Environmental Protection Department - 空氣質素健康指數單張及海報. Values are converted to the US EPA AQI standard.14
CO AQI
4HongKong CO (carbon monoxide) measured by Hong Kong Environmental Protection Department - 空氣質素健康指數單張及海報. Values are converted to the US EPA AQI standard.48
Temp.
18HongKong t (temp.) measured by Citizen Weather Observer Program (CWOP/APRS).1830
Pressure
1013HongKong p (pressure:) measured by Citizen Weather Observer Program (CWOP/APRS).10131014
Humidity
100HongKong h (humidity) measured by Citizen Weather Observer Program (CWOP/APRS).30100
Wind
1HongKong w (wind) measured by Citizen Weather Observer Program (CWOP/APRS).04
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Air Quality Forecast
MON 5
27°C
25°C
TUE 6
27°C
26°C
WED 7
27°C
26°C
THU 8
26°C
25°C
FRI 9
28°C
26°C
SAT 10
27°C
26°C
SUN 11
24°C
21°C
PM2.5
Monday 5Tuesday 6Wednesday 7Thursday 8Friday 9Saturday 10Sunday 11
hour
0369121518210369121518210369121518210369121518210369121518210369121518210369121518
Wind Speed (m/s)
76544566655465455566666899999887665444333234444591057864























































Temp.
26°26°26°26°26°26°26°27°26°26°26°26°27°27°27°27°26°26°26°26°27°27°27°26°26°25°26°26°26°26°26°26°26°26°26°27°27°28°27°27°27°26°26°26°26°27°27°26°24°24°22°21°22°23°21°
relative humidity
90899090888789868894929190888889918992878587909088919090909090929291929390879089899188888886879093938991826772
barometric pressure
1010100910091010100810061007100810081007100810091008100610071007100710061008100910081006100710081008100810091010100810061007100810071006100710081007100610071009100810071008100910071006100710081007100710081009100810081010
total precipitation
0.10.10.20.10.10.11.12.60.33.93.96.40.10.20.22.10.30.40.10.10.10.10.51.11.40.10.10.10.90.31.42.10.30.80.20.34.912.37.110.76.88.90.81
UVI:
10


5:50 ~ 18:52
UVI:
6


5:49 ~ 18:53
UVI:
11


5:49 ~ 18:53
UVI:
10


5:48 ~ 18:54
UVI:
11


5:48 ~ 18:54


5:47 ~ 18:55


5:46 ~ 18:55
Forecast plotted using timezone +08:00
Latest forecast updates:
Wind: 2 hours ago [May 5, 2025 4:43 AM]
fine particulate matter: 13 hours ago [May 4, 2025 6:12 PM]
ozone: a month ago [Mar 30, 2025 8:38 PM]
click to view the detailed forecast

Air Quality Data provided by: the Hong Kong Environmental Protection Department - 空氣質素健康指數單張及海報 (aqhi.gov.hk)

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Cloud API
This air quality monitoring station real-time data can be programmatically accessed using this API url: (For more information, check the API page:aqicn.org/api/ )

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Air quality historical data


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About the Air Quality and Pollution Measurement:

About the Air Quality Levels

AQIAir Pollution LevelHealth ImplicationsCautionary Statement (for PM2.5)
0 - 50GoodAir quality is considered satisfactory, and air pollution poses little or no riskNone
51 -100ModerateAir quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
101-150Unhealthy for Sensitive GroupsMembers of sensitive groups may experience health effects. The general public is not likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
151-200UnhealthyEveryone may begin to experience health effects; members of sensitive groups may experience more serious health effectsActive children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion
201-300Very UnhealthyHealth warnings of emergency conditions. The entire population is more likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.
300+HazardousHealth alert: everyone may experience more serious health effectsEveryone should avoid all outdoor exertion

To know more about Air Quality and Pollution, check the wikipedia Air Quality topic or the airnow guide to Air Quality and Your Health.

For very useful health advices of Beijing Doctor Richard Saint Cyr MD, check www.myhealthbeijing.com blog.


Usage Notice: All the Air Quality data are unvalidated at the time of publication, and due to quality assurance these data may be amended, without notice, at any time. The World Air Quality Index project has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the World Air Quality Index project team or its agents be liable in contract, tort or otherwise for any loss, injury or damage arising directly or indirectly from the supply of this data.



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