北京大学学报（自然科学版）2017，Vol.53Issue(6)：1042-1052,11.DOI:10.13209/j.0479-8023.2017.121
利用单颗粒气溶胶质谱仪研究南黄海气溶胶的变化特征
Changes of Marine Aerosol Properties over the South Yellow Sea Using Single Particle Aerosol Mass Spectrometer
摘要
Abstract
To better understand the variation properties of marine aerosol during transport, single particle aerosol mass spectrometer (SPAMS) was applied for the first time during a comprehensive ocean experiment over the South Yellow Sea in November 2012. Two parallel sections influenced by marine air masses with constant wind direction from ocean to land (Section 1), and continental air masses with constant wind direction from land to ocean (Section 2), respectively, were selected to study the variation of chemical characteristics of marine aerosol. The results showed that the average particle count in Section 2 was around 3.5 times higher than that in Section 1, which might be ascribed to the influence of continental air masses, accompanied with high wind speed in Section 2. Particle counts of major components (SO42?, NO3?, NH4+,OC and EC) containing particles in Section 1 and Section 2 (excluding NO3?) gradually decreased by 58%-74% and 34%-53%, and the reductions in Section 1 were greater than that in Section 2. Secondary aerosol contributed to the highest fraction (42%) of the total particles in Section 2, while sea-salt aerosol contributed to the highest (>30%) in Section 1. The contribution of secondary and other anthropogenic aerosols (including biomass burning, Soot-like and Pb-containing aerosols) in both sections were significant. It indicated that the contribution of anthropogenic air pollutants to marine aerosol could not be ignored over the South Yellow Sea.关键词
海洋气溶胶/SPAMS/化学特性/来源/南黄海Key words
marine aerosol/SPAMS/chemical characteristics/source/the South Yellow Sea分类
资源环境引用本文复制引用
郭晓霜,李小滢,闫才青,付怀于,高会旺,姚小红,郭志刚,郑玫..利用单颗粒气溶胶质谱仪研究南黄海气溶胶的变化特征[J].北京大学学报（自然科学版）,2017,53(6):1042-1052,11.基金项目
国家自然科学基金(41430646,41571130033, 41121004)资助 （41430646,41571130033, 41121004）
