Impact of atmospheric water-soluble iron on α-pinene-derived SOA formation and transformation in the presence of aqueous droplets

The following data sets belong to the article "Impact of atmospheric water-soluble iron on α-pinene-derived SOA formation and transformation in the presence of aqueous droplets" The impact of water-soluble atmospheric iron on formation, growth and aging of secondary organic aerosol (SOA) is a controversial subject in the literature. Iron chemistry drives Fenton-like reactions in the aqueous phase which is dependent on pH. Flow reactor experiments in the dark and under humid conditions were conducted to investigate systematically the influence of ferrous iron in the aqueous phase on α-pinene SOA by online physical analysis and offline high-resolution mass spectrometry. In total 31 flow reactor experiments were conducted in four sets of experiments. All SMPS data and mass spectra in negative mode are uploaded sorted by set of experiments and figures in the paper. You can find the workflow of SMPS data analysis as well as the retention times of the target analysis in the paper and SI.本数据集来自论文《含水雾条件下大气水溶性铁对α-蒎烯（α-pinene）衍生的二次有机气溶胶（secondary organic aerosol, SOA）形成与转化的影响》。大气水溶性铁对二次有机气溶胶（SOA）的形成、生长与老化过程的影响，是当前国际学界颇具争议的研究议题。铁的化学过程可驱动水相中的类芬顿反应，而该反应的发生依赖于pH条件。本研究在黑暗、高湿环境下开展流动反应器实验，结合在线物理分析与离线高分辨质谱技术，系统探究了水相中亚铁离子对α-蒎烯SOA的影响。本研究共分为4组实验，累计完成31次流动反应器测试。所有按实验组分类的扫描迁移率粒径谱仪（Scanning Mobility Particle Sizer, SMPS）数据、负离子模式质谱数据均已上传，与论文中的图表一一对应。扫描迁移率粒径谱仪数据分析流程以及目标分析的保留时间，均可在论文及补充材料（Supplementary Information, SI）中查阅。