The Air Quality Health Index, a new air pollution information system, will replace the existing Air Pollution Index when it comes into operation tomorrow.
The Environmental Protection Department said the new index communicate the health effects of air pollution in a more effective and timely manner.
The AQHI is reported on a scale of 1 to 10 and 10+, and is grouped into five health-risk categories - low, moderate, high, very high and serious. It also provides health advice for people with different degrees of susceptibility to air pollution.
The new system will provide AQHI forecasts twice a day.
The department has also developed a free mobile application to enable smartphone users to receive AQHI information. Call the hotline, 2827 8541, or click here for AQHI information.
To extend the air quality monitoring network, a new air quality monitoring station in Tuen Mun will also start operating tomorrow, to provide local air pollution information.
