Legend / Information

API Colour References

Good Below 50 18 Area/s
Moderate 51 - 100 32 Area/s
Unhealthy 101 - 200 1 Area/s
Very Unhealthy 201 - 300 0 Area/s
Hazardous More than 300 0 Area/s

API [Notes]

* Particulate matter with diameter of less than 10 micron (PM10)
a Sulphur Dioxide (SO2)
b Nitrogen Dioxide (NO2)
c Ozone (O3)
d Carbon Monoxide (CO)
& More than one pollutant