Singapore Air quality report with 24hr PSI/AQI 1hr PM2.5(fine particulate matter) 24Hr PM2.5 24Hr particulate matter (PM10) sulphur dioxide (SO2) nitrogen dioxide (NO2) ozone (O3) and carbon monoxide (CO).

Features:
- 1hr PSI/AQI Widget
- NOTIFICATION service hourly on hazy day base on 1hr PM2.5 PSI/AQI > 100 24hr PSI/AQI>100 or Sumatra Hotspot count>100
- supported PSI and AQI
- Haze map with wind direction hotspots location and haze coverage (Map update on evening everyday)
- Line charts with 24hrs data including 24hr PSI/AQI Sumatra Hotspot Count 1hr PM2.5 24Hr PM2.5 24Hr PM10 24Hr SO2 1Hr NO2 8Hr O3 and 8Hr CO.

Notes:
- 1hr PM2.5 PSI breakpoints converted base on formula from NEA and breakpoints of 24-hr PM2.5(ug/m3).
- AQI breakpoints referred from The United States Environmental Protection Agency (EPA)