Figure 2: Distribution of methane emissions from production sites in the Barnett Shale. | Nature Communications

Figure 2: Distribution of methane emissions from production sites in the Barnett Shale.

From: Super-emitters in natural gas infrastructure are caused by abnormal process conditions

Figure 2

(a) Cumulative percentage of sites as a function of the emission rate per site. In (b) we show the 5% of sites with highest emissions; (c) cumulative emissions as a function of emission rate per site. Blue lines represent each of 104 Monte Carlo iterations from the component-based aggregation reported in this work; orange lines represent the site-based results derived from Zavala-Araiza et al.21; vertical lines represent the 99th percentile of site emissions in Zavala-Araiza et al.21 (26 kg CH4 per hour). Inset text show ratios between site-based and component-based estimates for given metrics.

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