| 厦门市大气颗粒物中水溶性离子分布特征及其对酸雨的影响研究 |
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| 引用本文： | 郁建栓,王坚,李志君.厦门市大气颗粒物中水溶性离子分布特征及其对酸雨的影响研究[J].现代科学仪器,2014(5):105-107. |
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| 作者姓名： | 郁建栓 王坚 李志君 |
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| 作者单位： | 厦门市环境监测中心站,厦门361004 |
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| 摘 要： | 为研究厦门市大气颗粒物的污染特征及其对酸雨的影响,于2012年12月至2013年7月在厦门市各区分别采集大气中TSP、PM10、PM2.5颗粒物样品,利用离子色谱法分析了其中的水溶性离子成分含量。结果表明,厦门市大气颗粒物中水溶性离子成分分布特征为：Na＋和Ca2＋离子主要主要分布在TSP、PM10中,而SO42-离子则主要分布在PM10和PM2.5中。说明Na＋和Ca2＋离子更容易富集在粗颗粒物粒子上,而SO42-离子主要存在于细颗粒物粒子中。厦门市大气颗粒物中对雨水酸度有重要缓冲作用的Ca2＋、Mg2＋离子浓度处于较低水平,说明厦门市大气颗粒物对雨水酸度缓冲作用较低,这是厦门地区酸雨发生率较高的原因之一。
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| 关 键 词： | 大气颗粒物 水溶性离子 分布特征 酸雨 总悬浮颗粒物 可吸入颗粒物 细颗粒物 |
Distribution Characteristics of Water-soluble Ions in Atmosphreic Particles and its Influences on Acid Rain in Xiamen |
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| Yu Jianshuan,Wang Jian,Li Zhijun.Distribution Characteristics of Water-soluble Ions in Atmosphreic Particles and its Influences on Acid Rain in Xiamen[J].Modern Scientific Instruments,2014(5):105-107. |
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| Authors: | Yu Jianshuan Wang Jian Li Zhijun |
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| Affiliation: | (Xiamen Emvironmental Monitoring Central Station,Xiamen,361004) |
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| Abstract: | To research the distribution characteristics of water-soluble ions in atmosphreic particles and its influences on Acid Rain in Xiamen, samples of TSP, PM10, PM2.5 in atmosphreic particles in different areas were collected, and their water-soluble ions were determined by ion chromatgraphy. The results showed that there are significant Distribution characteristics of water-soluble ions in atmosphreic particles, Na＋ and Ca2＋ ions are mainly enriched in TSP and PM10 particles, SO42 is mainly enriched in PM10 and PM2.5 particles. The concentrations of Ca2＋ and Mg2＋ ions in atmosphreie particles, which have acid buffer capacity against acid rain, were in low-level, this is one of the reasons for high acid rain frequency in Xiamen. |
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| Keywords: | Atmosphreic particles Water-soluble ions Distribution characteristics Acid rain TSP PM 10 PM2 5 |
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