Comparison of measured emissions with reported emissions. Triangles represent sites where the tracer flux method (systematic sample) was used, and red circles represent sites where the Gaussian dispersion method (high-emitter biased sample) was used. The grey line represents a 1:1 relationship between measured and reported emissions. Please note the different x- and y-axis scales. DOI: https://doi.org/10.1525/elementa.284.f5