Atmospheric precipitation chemistry data

Measurements of atmospheric precipitation chemistry help us monitor and understand air quality. Precipitation chemistry is the measure of different pollutants in rain and snow. The collectors open only during these rain and snow events. Measurements are from instruments located at the earth’s surface (ground-based).

The NAtChem archive contains the following data:

• Anthropogenic organic pollutants in precipitation (AOPP)

• Major Ions

• Metals in precipitation

Data from measurements of precipitation chemistry are available as early as 1976.

You can also get data files from all of the measurements of precipitation chemistry

Measurements of atmospheric precipitation chemistry.

Information about how and where air quality data are measured is available from this link:

• Networks and studies

Data from urban sites are archived and distributed separately by the National Air Pollution Surveillance Program (NAPS).

Access NAPS data

Further reading on how we measure and produce these data is in the documentation below.

How we measure atmospheric precipitation chemistry