In the fall of 2015 Fluxsnse Inc. conducted a comprehensive five week campaign to characterize and quantify emissions from small stationary sources in the Los Angeles Basin using multiple Optical Remote Sensing (ORS) techniques. Fluxsense used a vehicle equipped with a suite of ORS instruments including Solar Ocultation Flux (SOF), Differential Optical Absorption Spectroscopy (DOAS), and Extractive Fourier Transform Infra-Red (FTIR) spectroscopy to measure emissions from over 100 small sources. These included gas stations, oil wells, oil treatment facilities and small tank farms. In addition, Fluxsense, the National Physical Laboratory (NPL), and Kassay Field Services conducted a set of comparative measurements to characterize and quantify emissions of volatile organic compounds (VOC's) from a small subset of small sources.

Overall, this project demonstrated that ORS techniques allow to:

• Survey a large number of small sources in relatively short amount of time

• Characterize and quantify certain emissions from small sources

• Rapidly identify potential leaks

Also, the results from SCAQMD's Project 2 suggest that:

• Oil wells, gas stations, and other small industrial sources are substantial contributors to total VOC emissions from stationary sources

Project 2 Final Reports