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近海海洋大气颗粒物中元素浓度及粒径分布研究 被引量:5

STUDY ON ELEMENTAL CONCENTRATIONS AND SIZE DISTRIBUTION OF MARINE ATMOSPHERIC PARTICLES OVER NEAR-CHINA OCEAN
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摘要 本工作用质子激发X荧光分析测定近中国海域上空下同粒生大气颗粒物中14个元素的浓度、粒径分市及富集因子、研究发现.在开阔海域大气中污染元素和地壳元素主要来自亚洲大陆长距离输送的贡献,海水元素浓重受海盐气溶性的控制.估算近中国海域大气中的尘土量为0.4—2.3μgm^3.尘土粒子的输入量控制着海洋大气颗粒物中地壳元素浓度. Proton induced X-ray emission was used to measure the contents of 20 elements in size-fractionating samples collected at Near-China Ocean. An investigation on variabilities of marine atmospheric particle concentration and size distribution was discribed. High enrichment of pollutant and crustal elements relative to oceanic sources was observed. Some characteristics of marine atmospheric relating to long-range transport of crustal and anthropogenic elements from the continent to the remote ocean area are discussed. The total dust-soil particle mass is estimated to be 0. 4-2. 3μg/m3 over the Near-China Ocean area . Atmospheric inputs of dust-soil particles conctrol the marine particle concentrations of crustal elements.
出处 《环境化学》 CAS CSCD 北大核心 1994年第6期498-503,共6页 Environmental Chemistry
关键词 大气 颗粒物 质子激发 X荧光分析 海洋环境 marine atmospheric particle, proton induced X-ray emission.
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参考文献2

  • 1Zhou Mingyu,J Geophys Rev D,1995年,2期,1779页
  • 2钟溟,环境化学,1986年,5卷,2期,57页

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