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Aerostat-lofted instrument and sampling method for determination of emissions from open area sources
Citation:
Aurell, J., B. K. GULLETT, C. PRESSLEY, D. G. TABOR, AND R. D. Gribble. Aerostat-lofted instrument and sampling method for determination of emissions from open area sources. CHEMOSPHERE. Elsevier Science Ltd, New York, NY, 85(5):806-811, (2011).
Impact/Purpose:
journal article
Description:
An aerostat-borne instrument and sampling method was developed to characterize air samples from area sources, such as emissions from open burning. The 10 kg battery-powered instrument system, termed "the Flyer," is lofted with a helium-filled aerostat of 4 m nominal diameter and maneuvered by means of one or two tethers. The Flyer can be configured variously for continuous CO2 monitoring, batch sampling of semi-volatile organic compounds (SVOC), volatile organic compounds (VOC), black carbon, metals, and PM by size. The samplers are controlled by a trigger circuit to avoid unnecessary dilution from background sampling when not within the source plume. The aerostat/Flyer method was demonstrated by sampling emissions from open burning and open detonation of military ordnance. A carbon balance approach was used to derive emission factors that showed excellent agreement with published values.
