Pollutants

  • Pollutants are particles and gases in the air that can be harmful to people's health in high concentrations.

  • The Air Quality API provides information on common air pollutants, including their concentration, dominant type, sources, and effects.

  • Supported pollutants include carbon monoxide, benzene, ozone, ammonia, and particulate matter, among others, measured in ppb or μg/m³.

What is a pollutant?

Pollutants are particles and gasses in the air that, in high concentration, can be harmful to people's health.

Reported pollutants

The Air Quality API supports the most common pollutants.

Pollutants information includes:

  • Dominant pollutant
  • Concentration
  • Sources & Effects
Code Display Name Full Name Units Measured
co
CO Carbon monoxide ppb
c6h6
C6H6 Benzene μg/m³
ox
OX Photochemical oxidants ppb
o3
3 Ozone ppb
nh3
NH3 Ammonia ppb
nmhc
NMHC Non-methane hydrocarbons ppb
no
NO Nitrogen monoxide ppb
nox
NOX Nitrogen oxides ppb
no2
NO2 Nitrogen dioxide ppb
p25
P25 Fine particulate matter (<2.5µm) μg/m³
pm10
PM10 Inhalable particulate matter (<10µm) μg/m³
so2
SO2 Sulfur dioxide ppb
trs
TRS Total reduced sulfur μg/m³
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