Atmospheric gases data
Measurements of atmospheric gases help us monitor and understand air quality. Measurements are from instruments located at the earth’s surface (ground-based).
The NAtChem archive contains the following data:
Some of these gases data are available as early as 1986.
You can also get data files from all of the measurements of atmospheric gases.
Monitoring of atmospheric gases
Information about how and where air quality data are measured is available from this link:
Data from urban sites are archived and distributed separately by the National Air Pollution Surveillance Program (NAPS).
Further reading on how we measure and produce these data is in the documentation below.