Abstract: A method for monitoring air quality is described. The method includes measuring ethane and methane using a mobile sensor platform to provide sensor data. The sensor data includes methane data and ethane data captured at a nonzero mobile sensor platform speed. Methane and ethane peak(s) are identified in the sensor data. Correlation(s) between the methane and ethane peak(s) and/or between the methane peak(s) and at least one amount of 13C are determined. A source for the methane is determined based on the correlation.

Abstract: A method for monitoring air quality is described. The method includes measuring ethane and methane using a mobile sensor platform to provide sensor data. The sensor data includes methane data and ethane data captured at a nonzero mobile sensor platform speed. Methane and ethane peak(s) are identified in the sensor data. Correlation(s) between the methane and ethane peak(s) and/or between the methane peak(s) and at least one amount of 13C are determined. A source for the methane is determined based on the correlation.

Abstract: Detection of volatile organic compounds (VOCs) is disclosed, including: receiving mobile sensor data, wherein the mobile sensor data includes volatile organic compounds (VOC) sensor data and non-VOC sensor data; identifying VOC peaks in the VOC sensor data; identifying non-VOC peaks in the non-VOC sensor data; correlating the VOC peaks with the non-VOC peaks; and determining a source type associated with the VOC peaks based at least in part on the correlation between the VOC peaks and the non-VOC peaks.

Abstract: A system, device, and method for detecting leaks near an emitter is disclosed. The method includes (i) receiving, from one or more mobile sensors, a first stream of information indicative of a leak state, (ii) determining that an initial leak state exists based at least in part on the first stream of information indicative of the leak state, (iii) receiving a second stream of information indicative of a no-leak state, (iv) using a statistical model to determine that the leak state has ended based at least in part on the first stream of information and the second stream of information, (v) receiving a third stream of information indicative of the leak state, and (vi) determining that a new leak state exists, wherein the new leak state is a distinct leak state from the initial leak state.

Abstract: A method for monitoring air quality is described. The method includes measuring ethane and methane using a mobile sensor platform to provide sensor data. The sensor data includes methane data and ethane data captured at a nonzero mobile sensor platform speed. Methane and ethane peak(s) are identified in the sensor data. Correlation(s) between the methane and ethane peak(s) and/or between the methane peak(s) and at least one amount of 13C are determined. A source for the methane is determined based on the correlation.

Abstract: A method for monitoring air quality is described. The method includes measuring ethane and methane using a mobile sensor platform to provide sensor data. The sensor data includes methane data and ethane data captured at a nonzero mobile sensor platform speed. Methane and ethane peak(s) are identified in the sensor data. Correlation(s) between the methane and ethane peak(s) and/or between the methane peak(s) and at least one amount of 13C are determined. A source for the methane is determined based on the correlation.

Abstract: A method for monitoring air quality is described. The method includes measuring ethane and methane using a mobile sensor platform to provide sensor data. The sensor data includes methane data and ethane data captured at a nonzero mobile sensor platform speed. Methane and ethane peak(s) are identified in the sensor data. Correlation(s) between the methane and ethane peak(s) and/or between the methane peak(s) and at least one amount of 13C are determined. A source for the methane is determined based on the correlation.

Abstract: A method for monitoring air quality is described. The method includes measuring ethane and methane using a mobile sensor platform to provide sensor data. The sensor data includes methane data and ethane data captured at a nonzero mobile sensor platform speed. Methane and ethane peak(s) are identified in the sensor data. Correlation(s) between the methane and ethane peak(s) and/or between the methane peak(s) and at least one amount of 13C are determined. A source for the methane is determined based on the correlation.

Abstract: A method for monitoring air quality is described. The method includes measuring ethane and methane using a mobile sensor platform to provide sensor data. The sensor data includes methane data and ethane data captured at a nonzero mobile sensor platform speed. Methane and ethane peak(s) are identified in the sensor data. Correlation(s) between the methane and ethane peak(s) and/or between the methane peak(s) and at least one amount of 13C are determined. A source for the methane is determined based on the correlation.