研究人员测量到的全设施排放量约占开采石油的1%，其有机碳排放总量相当于加拿大所有其他来源的总和。这些实际的观察结果表明，无论化学特征如何，总有机碳测量都是检测未知或低报碳排放的一种手段。研究人员强调，报告差距可能包括有害物质、活性或二次空气污染物，因此，要充分限制人为排放的影响，必须进行常规、全面的总有机碳监测来作为对大规模关闭的固有检查。
据悉，人为有机碳排放报告在很大程度上仅限于化学形成的挥发性有机化合物子集。然而，基于航空器的新测量结果显示，气相有机碳总排放量比油砂行业报告的值高出1900%至6300%以上，其中大部分为未说明的中间挥发性和半挥发性有机化合物造成的。
附：英文原文
Title: Total organic carbon measurements reveal major gaps in petrochemical emissions reporting
Author: Megan He, Jenna C. Ditto, Lexie Gardner, Jo Machesky, Tori N. Hass-Mitchell, Christina Chen, Peeyush Khare, Bugra Sahin, John D. Fortner, Desiree L. Plata, Brian D. Drollette, Katherine L. Hayden, Jeremy J. B. Wentzell, Richard L. Mittermeier, Amy Leithead, Patrick Lee, Andrea Darlington, Sumi N. Wren, Junhua Zhang, Mengistu Wolde, Samar G. Moussa, Shao-Meng Li, John Liggio, Drew R. Gentner
Issue&Volume: 2024-01-26
Abstract: Anthropogenic organic carbon emissions reporting has been largely limited to subsets of chemically speciated volatile organic compounds. However, new aircraft-based measurements revealed total gas-phase organic carbon emissions that exceed oil sands industry–reported values by 1900% to over 6300%, the bulk of which was due to unaccounted-for intermediate-volatility and semivolatile organic compounds. Measured facility-wide emissions represented approximately 1% of extracted petroleum, resulting in total organic carbon emissions equivalent to that from all other sources across Canada combined. These real-world observations demonstrate total organic carbon measurements as a means of detecting unknown or underreported carbon emissions regardless of chemical features. Because reporting gaps may include hazardous, reactive, or secondary air pollutants, fully constraining the impact of anthropogenic emissions necessitates routine, comprehensive total organic carbon monitoring as an inherent check on mass closure.
DOI: adj6233
Source: https://www.science.org/doi/10.1126/science.adj6233