SG Air is a comprehensive air quality monitoring application tailored for Singapore, providing real-time and historical data on various pollutants and atmospheric conditions. It offers detailed insights through multiple metrics, including 24-hour PSI/AQI, 1-hour PM2.5, 24-hour PM2.5, PM10, SO2, NO2, O3, and CO levels.
Key Features:
- 1-hour PSI/AQI Widget: Quick access to real-time air quality index updates.
- Notification Service: Alerts users during hazy conditions based on thresholds: 1-hour PM2.5 PSI/AQI > 100, 24-hour PSI/AQI > 100, or Sumatra Hotspot count > 100.
- Dual Index Support: Compatible with both PSI and AQI standards.
- Haze Map: Visualizes wind direction, hotspot locations, and haze coverage, updated daily in the evening.
- Line Charts: Display 24-hour trends for all major pollutants and hotspot counts.
- Crowdsourced Reports: Users can share and view nearby air quality conditions and upload photos.
- SG Air Camera: Allows visual verification of current conditions.
Notes:
- 1-hour PM2.5 PSI calculations follow NEA guidelines and 24-hour PM2.5 breakpoints.
- AQI standards are based on U.S. EPA breakpoints.










