Traffic-related volatile organic compounds (VOCs) emissions are regarded as the primary anthropogenic source of ambient VOCs in urban areas and precursors to ozone formation. Given the extensive use of gasoline-ethanol mixtures on light-duty vehicles, it is essential to discuss its effects on the atmospheric environment, especially the VOCs emissions and ozone forming potential (OFP) values of one typical formulation called the “match-blend.” In this paper, VOCs emission factors, VOCs distributions, specific reactivity (SR) values, and OFP values of a China-6 commercial gasoline and four E10 match-blend fuels used on seven China-6 vehicles were studied. Thirteen carbonyls detected by high-performance liquid chromatography along with seven VOCs detected by gas chromatography-mass spectrometry were considered in the calculation of OFP and SR. Besides, the effects of test temperatures are discussed. Results show that ethanol increases VOCs emissions, OFP, and SR values at cold-start/room temperature, but behaves oppositely at cold-start/low temperature. Increases in heavy aromatics always lead to higher VOCs emissions and OFP values.

与交通相关的挥发性有机化合物 (VOC) 排放被认为是城市地区环境 VOC 的主要人为来源和臭氧形成的前体。鉴于汽油-乙醇混合物在轻型车辆上的广泛使用，有必要讨论其对大气环境的影响，尤其是一种称为“匹配混合物”的典型配方的 VOC 排放量和臭氧形成潜势 (OFP) 值。 ” 在本文中，研究了用于七辆国六汽车的国六商用汽油和四种 E10 匹配混合燃料的 VOCs 排放因子、VOCs 分布、比反应性 (SR) 值和 OFP 值。在计算 OFP 和 SR 时考虑了高效液相色谱法检测到的 13 种羰基化合物以及气相色谱-质谱法检测到的 7 种 VOC。此外，还讨论了测试温度的影响。结果表明，乙醇在冷启动/室温下会增加 VOCs 排放、OFP 和 SR 值，但在冷启动/低温下表现相反。重芳烃的增加总是会导致更高的 VOC 排放和 OFP 值。