This work describes the development of an ultra-light-weight Proton-Transfer-Reaction Mass
Spectrometer (PTR-MS) its detailed qualification ground-based and airborne applications and
studies on VOC emissions in connection with fossil fuel production. The new system was used
aboard a mobile laboratory in order to investigate the chemical fingerprints of the diverse
emitters at oil and natural gas well pads. Emissions of aromatic hydrocarbons at a
hydraulically fractured well have been studied.
