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there are large uncertainties in the long-time ageing of wi

2024-01-10 17:09字体:
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Jathar, 附:英文原文 Title: Formation of secondary organic aerosol from wildfire emissions enhanced by long-time ageing Author: He, Zhe, there are large uncertainties in the long-time ageing of wildfire organic aerosol because of the distinct ageing behaviours of the complex organic emissions. Here we developed an oxidation model that simulates the ageing of wildfire organic emissions in the full volatility range on a precursor level and integrated insights from single-species ageing and wildfire emissions ageing experiments and field plume observations to constrain the long-time ageing of wildfire organic aerosol. The model captured the enhancement of organic aerosol mass (28 times) and oxygen-to-carbon ratio (14 times) in the wildfire ageing experiments. It also reconciled a long-standing discrepancy between field and laboratory observations of the magnitude of secondary organic aerosol formation. The model indicated large emissions-driven variations in precursor contributions to secondary organic aerosol, Yee, Cappa, Donahue, which further evolve with long-time ageing. The estimated global wildfire secondary organic aerosol production (13934Tgper year) was much higher than previous studies omitting or under-constraining long-time ageing. DOI: 10.1038/s41561-023-01355-4 Source: https://www.nature.com/articles/s41561-023-01355-4 期刊信息 NatureGeoscience: 《自然地球科学》,估计全球野火二次有机气溶胶产量((每年13934 Tg)远远高于先前忽略或未充分限制长期老化的研究, has profound impacts on air quality。

Neil M. IssueVolume: 2024-01-09 Abstract: Wildfire smoke。

which substantially changes its magnitude and properties. However, Bin, Zhao,其对空气质量、气候和人类健康有着深远影响, Chang, Boyang。

Aumont, consisting primarily of organic aerosols。

然而,imToken钱包下载, 本期文章:《自然—地球科学》:Online/在线发表 清华大学赵斌教授团队的一项最新研究提出了野火排放物中二次有机气溶胶的形成因长期老化而增强, Yin, Dearden,在前驱水平上模拟了野火有机排放物在整个挥发范围内的老化,野火烟雾主要由有机气溶胶组成, climate and human health. Wildfire organic aerosol evolves over long-time photochemical oxidation due to the formation and ageing of secondary organic aerosol, Richard,该模型捕捉到了野火老化实验中有机气溶胶质量(2-8倍)和氧碳比(1-4倍)的增加,2024年1月9日出版的《自然地球科学》发表了这项成果,排放驱动的前体对二次有机气溶胶的贡献有很大的变化, Feng, Jiming。

研究模型调和了长期以来对二次有机气溶胶形成幅度的实地观测和实验室观测之间的差异,最新IF:21.531 官方网址: https://www.nature.com/ngeo/ 投稿链接: https://mts-ngs.nature.com/cgi-bin/main.plex , Bernard,野火有机气溶胶的长期老化存在较大的不确定性, Christopher D.,imToken,由于二次有机气溶胶的形成和老化,这种变化随着长期老化而进一步演变。

Valorso, Jiang, Marie, Dejia,隶属于施普林格自然出版集团,野火有机气溶胶在长时间的光化学氧化过程中发生演变, Shrivastava, Manish, Xing。

Camredon, Yicong, John H.,以限制野火有机气溶胶的长期老化,该模型表明。

由于复杂有机排放物具有明显的老化行为, 据介绍,其大小和性质发生了实质性的变化。

Hao, Shantanu H., 研究人员开发了一个氧化模型, Shuxiao, Abraham,并整合了来自单一物种老化和野火排放老化实验以及现场羽流观测的见解, Lindsay D.,。

Seinfeld, Wang,创刊于2008年。

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