Smog clasico y fotoquimico pdf download11/7/2022 ![]() ![]() We show that model simulations of ozone depend foremost on the magnitude of VCP emissions and that the addition of oxygenated VCP chemistry impacts simulations of key atmospheric oxidation products. Emissions from fragranced VCPs, including personal care and cleaning products, account for at least 50% of the ozone attributed to VCPs. ![]() VCPs accounted for more than 50% of this total AVOC contribution. ![]() Within this VOC-sensitive regime, AVOCs contributed upwards of ∼20 ppb to maximum 8-h average ozone. In the most populated regions of NYC, ozone was sensitive to anthropogenic VOCs (AVOCs), even in the presence of biogenic sources. Photochemical modeling of an extreme heat event, with ozone well in excess of US standards, illustrates the significant impact of VCPs on air quality. We report significant VCP emissions for New York City (NYC), including a monoterpene flux of 14.7 to 24.4 kg ⋅ d −1 ⋅ km −2 from fragranced VCPs and other anthropogenic sources, which is comparable to that of a summertime forest. We show that VCP emissions are ubiquitous in US and European cities and scale with population density. Today, volatile chemical products (VCPs) are responsible for half of the petrochemical VOCs emitted in major urban areas. McKeen, Fred Moshary, Jeff Peischl, Veronika Pospisilova, Xinrong Ren, Anna Wilson, Yonghua Wu, Michael Trainer, and Carsten Warneke -22 Authors Info & Affiliationsĭecades of air quality improvements have substantially reduced the motor vehicle emissions of volatile organic compounds (VOCs). Hurley, Gabriel Isaacman-VanWertz, Abigail R. ![]()
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