UAV	Unmanned Aerial Vehicles
UGV	Unmanned Ground Vehicles
GHGs	Greenhouse Gasses
PM	Particulate Matter
VOC	Volatile Organic Compound
UFP	Ultrafine Particle
BC	Black Carbon
OC	Organic Carbon
FAA	Federal Aviation Authority of the U.S.
CASA	Civil Aviation Safety Australia
WSN	Wireless System Network
NASA	National Aeronautics and Space Administration
MOX	Metal Oxide
NDIR	Non-dispersive Infrared
SPME	Solide Phase Microextraction