HK AQHI 香港空氣質素健康指數

Track real-time air quality across Hong Kong with HK AQHI 香港空氣質素健康指數, the official app for the Air Quality Health Index reported by the Government's Environmental Protection Department. Monitor readings from 15 general and 3 roadside air monitoring stations throughout the territory.

The app displays AQHI on a scale of 1 to 10+, grouped into five health risk categories: Low, Moderate, High, Very High, and Serious. See current conditions and 24-hour trends for pollutant concentrations at each station, so you understand what you're breathing and how air quality is changing throughout your day.

Stay informed with customizable notifications. Receive alerts when health risk levels change in your area, get forecasts before conditions shift, and set timed notifications to check air quality at specific times. Long-term health risk tracking helps you spot seasonal patterns and plan accordingly—essential for people with respiratory conditions, athletes training outdoors, or anyone concerned about air quality.

Access station-specific data instantly through home screen widgets. Display current readings, health risk forecasts, or monitor multiple stations at once without opening the full app. Each station's historical trend charts show you whether air quality is improving or deteriorating, helping you make informed decisions about outdoor activities.

Whether commuting, exercising, or planning your week, HK AQHI 香港空氣質素健康指數 gives you the data you need to protect your health and that of your family. Official data, direct to your phone.