Aqueous secondary formation substantially contributes to hydrophilic organophosphate esters in aerosols

We combine field measurements and partitioning models to reveal that OPEs could be enhanced by aqueous-phase processes in aerosols. We suggest that dissolved inorganic salts and transition metals in aerosols positively impact on the formation of hydrophilic OPEs, by facilitating aqueous partitioning and/or oxidation. The dataset includes mean concentration and contribution of OPEs, the results related to the partitioning behavior of OPEs, secondary formation tracers and the PMF results reported in the study.

本研究结合野外观测与分配模型，证实气溶胶中的水相过程可提升有机磷酸酯类（Organophosphate Esters, OPEs）的浓度水平。本研究提出，气溶胶内溶解的无机盐与过渡金属可通过促进水相分配及/或氧化反应，对亲水性有机磷酸酯类的形成产生正向促进作用。本数据集涵盖本研究中报道的有机磷酸酯类平均浓度及其占比、与有机磷酸酯类分配行为相关的研究结果、二次形成示踪剂数据，以及正矩阵因子分解（Positive Matrix Factorization, PMF）分析结果。