A Global Particulate



Ambient fine particulate matter (PM2.5) is the leading environmental risk factor for the global burden of disease.  Despite the importance of PM2.5, ground-based observations have insufficient coverage at the global scale to allow assessment of exposure to PM2.5.


To address the current gaps in knowledge of global PM2.5 concentrations, we are developing the grassroots Surface Particulate Matter Network (SPARTAN) to measure fine particulate concentrations to evaluate and enhance satellite remote sensing estimates of PM2.5.  The network provides publicly available data on PM2.5 mass, chemical composition, and optical characteristics for connection with satellite remote sensing and for air quality management.   



All SPARTAN instruments are designed and built by AirPhoton LLC, at their facility in Baltimore, MD, USA
SPARTAN is supported by The National Science Foundation
SPARTAN is supported by Bloomberg Philanthropies
Vital Strategies is a partner in the development of SPARTAN
Deployment of SPARTAN at primary target areas for the MAIA satellite instrument is supported by NASA/JPL
​OpenAQ has connected our PM2.5 data into their database. 
SPARTAN is supported by the Clean Air Fund


The Spartan


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SPARTAN is hosted at


Washington University

Green Hall, Rm 3101 
Department of Energy, Environmental and Chemical Engineering
6220 Forest Park Parkway
St Louis, MO
63130, USA