| 冬季黄海西部海域气溶胶中主要水溶性离子的化学组成与特性研究 |
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| 引用本文： | 王辉,李建龙,张洪海,杨桂朋. 冬季黄海西部海域气溶胶中主要水溶性离子的化学组成与特性研究[J]. 海洋环境科学, 2018, 37(3): 349-355. DOI: 10.12111/j.cnki.mes20180306 |
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| 作者姓名： | 王辉 李建龙 张洪海 杨桂朋 |
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| 作者单位： | 中国海洋大学 化学化工学院, 山东 青岛 266100 |
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| 基金项目： | 国家自然科学基金项目（41306069）；国家重点研发计划项目（2016YFA0601301）；中央高校基本科研业务费项目（201513049） |
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| 摘 要： | 基于2012年初冬采集的黄海西部海域大气总悬浮颗粒物样品（TSP），分析其中主要水溶性离子（Cl-、NO3-、SO42-、Na+、K+、NH4+、Mg2+、Ca2+）及甲基磺酸盐（CH3SO3-，MSA）的浓度水平及化学特性，并探讨人为活动对近海大气气溶胶组成的影响。分析结果显示，气溶胶中二次离子（非海盐硫酸盐nss-SO42-、NO3-和NH4+）浓度最高，占到总测定离子浓度的69.4%。同时发现Cl-由于受人为活动的影响表现出一定程度的富集，富集因子平均值为34.6%。气溶胶样品中的MSA浓度水平较低，平均值仅为0.014±0.012 μg/m3。来源分析结果表明，海盐硫酸盐（ss-SO42-）对总SO42-的贡献率仅为7.3%，生源硫酸盐对nss-SO42-的贡献率为5.0%，说明人为活动输入是中国黄海大气气溶胶中SO42-的主要来源。另外，气溶胶中NO3-占无机氮的比例为62.56%～83.03%。
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| 关 键 词： | 大气气溶胶 水溶性离子 非海盐硫酸盐 甲基磺酸盐 黄海 |
| 收稿时间： | 2017-06-21 |
Chemical composition and characteristics of main water soluble ions in atmospheric aerosol over the western Yellow Sea during winter |
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| Hui WANG,Jian-long LI,Hong-hai ZHANG,Gui-peng YANG. Chemical composition and characteristics of main water soluble ions in atmospheric aerosol over the western Yellow Sea during winter[J]. Marine Environmental Science, 2018, 37(3): 349-355. DOI: 10.12111/j.cnki.mes20180306 |
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| Authors: | Hui WANG Jian-long LI Hong-hai ZHANG Gui-peng YANG |
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| Affiliation: | College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China |
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| Abstract: | The total suspended particulates(TSP) samples in atmospheric aerosol were collected in western the Yellow Sea in winter 2012 to study the main water-soluble ion concentrations of Cl-, NO3-, SO42-, Na+, K+, NH4+, Mg2+, Ca2+ and CH3SO3-(MSA) as well as their chemical characteristics and to discuss the influence of human activities on coastal atmospheric aerosol.The results showed that the concentrations of secondary ions(nss-SO42-, NO3- and NH4+) in aerosol were the highest, accounting for 69.4% of the total determined ions.At the same time, Cl- showed a certain degree of enrichment due to the influence of human activities, and the average value of enrichment factor was 34.6%.The concentrations of MSA were relatively low, with an average of 0.014±0.012 μg/m3.The analysis of sulfate source showed that the contribution of sea-salt sulfate was 7.3% to the total SO42-, while biogenic sulfate accounted for 5.0% of nss-SO42-, indicating that human input was the main source of sulfate in aerosol over the Yellow Sea during winter.In addition, the proportion of NO3- in inorganic nitrogen in aerosol is 62.56%～83.03%. |
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