孔毅,管阳,郭浩,石金辉

• 1:中国海洋大学海洋环境与生态教育部重点实验室
• 2:青岛海洋科学与技术试点国家实验室海洋生态与环境科学功能实验室

摘要(Abstract)：

本文利用冬春季在青岛采集的气溶胶样品，分析了其中总磷(TP)、溶解态磷(DP)、溶解态无机磷(DIP)和溶解态有机磷(DOP)浓度，讨论了沙尘源和人为源气溶胶中磷浓度和溶解度的差异及磷的来源和酸化作用的影响。结果表明，TP在沙尘源样品、人为源的霾样品和雾样品中浓度中值分别为325.5、152.9和142.2 ng/m~3,DP对TP的贡献、即磷溶解度的中值分别为8.3%、24.6%和55.5%。人为源样品中较高的DP浓度来自DIP的贡献，DOP浓度在人为源和沙尘源样品中相当。沙尘源样品中TP的矿物和非矿物形式各占50%、DP中非矿物P的占比为70%;人为源样品中非矿物磷在TP中的占比>60%、在DP中>90%。酸化作用对矿物磷的溶解效率远远低于非矿物磷。人为源的雾样品中高磷溶解度主要决定于非矿物磷初始溶解度的贡献(>20%)及其酸化作用的二次提升(10%～40%),人为源的霾样品中磷溶解度主要决定于非矿物磷初始溶解度的贡献，其酸化作用的贡献较小。在沙尘源和人为源样品中，矿物形式磷贡献的溶解度均较小，约为1%～3%。

关键词(KeyWords)： 溶解态磷;磷溶解度;气溶胶;沙尘源;人为源

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41876131)资助~~

作者(Author): 孔毅,管阳,郭浩,石金辉

DOI: 10.16441/j.cnki.hdxb.20220220

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