Real time broadcasting of the Air Quality Health Index (AQHI) reported by the 15 general and 3 roadside air monitoring stations operated by the Environmental Protection Department of the Government of the Hong Kong Special Administrative Region. AQHI is reported on a scale of 1 to 10 and 10+ and grouped into five Health Risk Categories: Low, Moderate, High, Very High and Serious. This App provides the following features and air quality information - • Forecast of Health Risk Category of general and roadside monitoring stations • AQHI of each monitoring station and their trends in the past 24 hours • Air pollutant concentrations of each monitoring station and their trends in the past 24 hours • Health Risk forecast notification • Health Risk notification of monitoring station(s) • Health Risk lowered notification of monitoring station(s) • Timed air quality notification • Widgets for monitoring station(s), current Health Risk and Health Risk forecast