Parameters

A Parameter in the OpenAQ platform is the type of particle or gaseous pollutant measured.

Currently OpenAQ supports the following Parameters:

PM2.5 - Particulate matter smaller than 2.5 microns
- mass concentration (i.e. µg/m³)
- count (i.e. particles/cm³ )
PM4 - Particulate matter smaller than 4 microns
- mass concentration (i.e. µg/m³)
- count (i.e. particles/cm³ )
PM10- Particulate matter smaller than 10 microns
- mass concentration (i.e. µg/m³)
- count (i.e. particles/cm³ )
NO - Nitrogen Monoxide
NO₂ - Nitrogen Dioxide
CH₄ - Methane
- Concentration (i.e. ppm)
SO₂ - Sulfur Dioxide
O₃ - Ozone
CO - Carbon Monoxide
BC - Black Carbon