Figure 2. Air pollutants emitted along the O&G life cycle (Moore et al., 2014). BTEX = benzene, toluene, ethylbenzene, xylene.
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Source: Moore, C. W., Zielinska, B., Pétron, G., & Jackson, R. B. (2014). Air impacts of increased natural gas acquisition, processing, and use: A critical review. Environmental Science & Technology, 48(15), 8349–8359. https://doi.org/10.1021/es4053472