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.

All SPARTAN instruments are designed and built by AirPhoton LLC, at their facility in Baltimore, MD, USA
SPARTAN is supported by Bloomberg Philanthropies
Vital Strategies is a partner in the development of SPARTAN
​OpenAQ has connected our PM2.5 data into their database. 
SPARTAN is supported by the ClimateWorks Foundation
SPARTAN has been supported by the Canadian Foundation for Innovation 
SPARTAN has been supported by the Natural Sciences and Engineering Research Council of Canada
Deployment of SPARTAN at primary target areas for the MAIA satellite instrument is supported by NASA/JPL
​SPARTAN Canadian sites are supported by the Health Effects Institute through the MAPLE project led by Michael Brauer .



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