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Weather Traffic Conditions

Air quality advisory issued

September 27, 2017

The Environmental Protection Department has recorded higher than normal pollution levels and advised people to reduce physical exertion and outdoor activities.


At 3pm today the Air Quality Health Index at some general and roadside stations had reached 8 or above, corresponding to the "Very High" health risk.


The department said Hong Kong is being affected by an airstream with higher background pollutant concentrations.


Intense sunshine enhances photochemical smog activity and ozone formation, resulting in high ozone concentrations in the Pearl River Delta region. Light winds have hindered dispersion of air pollutants.


The department warned the health index at some monitoring stations may reach the "Serious" level later today.


The Hong Kong Observatory said the weather will be fine and very hot with some haze tomorrow, while the northeast monsoon is expected to reach the coast of Guangdong on Friday.


Pollution is expected to remain higher than normal.


Click here for index readings.

Clean Air and You