The proportion of air that is methane, usually in parts per million (ppm) or billion (ppb). Can be for a point, a line (ppm-m), or a 3D area (e.g., column averages).
© Highwood Emissions Management
The proportion of air that is methane, usually in parts per million (ppm) or billion (ppb). Can be for a point, a line (ppm-m), or a 3D area (e.g., column averages).
© Highwood Emissions Management