Air monitoring technology for methane emissions from fugitive sources

New measurement technologies that provide continuous quantitative CH4 emission rates (e.g., over timeframes of hours or days) to increase the number of measurement data points available across multiple locations and source types to improve characterization of methane emissions. Estimating source emissions from nearby ambient monitoring measurements can require measurements of low methane concentrations and possibly simultaneous measurement of wind speed and direction. Important parameters include portability, measurement accuracy and repeatability, low cost of purchase and operation, ease of operation, and data recording and transmission capabilities.