Dissolution of aerosol-derived iron in seawater: Leach solution chemistry, aerosol type, and colloidal iron fraction
Aguilar-Islas, AM; Wu, JF; Rember, R; Johansen, AM; Shank, LM; aaguilar@iarc.uaf.edu
2010
发表期刊MARINE CHEMISTRY
ISSN0304-4203
卷号120期号:40547页码:25-33
摘要Experiments were conducted using a semi-continuous batch protocol to leach iron from aerosol samples. In this procedure, aerosol samples were leached in an all-Teflon flow-through reaction chamber by multiple (3-4) aliquots (similar to 40 mL) of leaching solution per predetermined leaching period. Several types of aerosols and leaching solutions were tested. The percent iron solubility obtained from aerosols collected in two urban regions was lower (similar to 1%) than the solubility from samples collected in the open ocean (6-13%). This regional variability was greater than the variability obtained when leaching the same aerosols using different leaching solutions. A review of field and laboratory studies from the literature also suggests that different types of aerosols produce more variability in aerosol iron solubility estimates than do different leaching protocols. Colloidal iron was the dominant fraction of aerosol derived dissolved iron in all the experiments carried out during this study, suggesting that the dissolution of aerosol iron in seawater is dominated by the colloidal iron fraction. (C) 2009 Elsevier B.V. All rights reserved.
部门归属[Aguilar-Islas, Ana M.; Wu, Jingfeng; Rember, Robert] Univ Alaska Fairbanks, Int Arctic Res Ctr, Fairbanks, AK 99775 USA; [Wu, Jingfeng] Chinese Acad Sci, Key Lab Trop Marine Environm Dynam, S China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China; [Johansen, Anne M.] Cent Washington, Dept Chem, Ellensburg, WA 98926 USA; [Shank, Lindsey M.] Univ Hawaii Manoa, Dept Oceanog, Honolulu, HI 96822 USA
关键词Aerosol Iron Dissolved Iron Soluble Iron Colloidal Iron Aerosol Solubility In Seawater
学科领域Chemistry, Multidisciplinary ; Oceanography
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收录类别sci
资助项目LED
WOS记录号WOS:000279066700004
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文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/6285
专题热带海洋环境国家重点实验室(LTO)
通讯作者aaguilar@iarc.uaf.edu
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GB/T 7714
Aguilar-Islas, AM,Wu, JF,Rember, R,et al. Dissolution of aerosol-derived iron in seawater: Leach solution chemistry, aerosol type, and colloidal iron fraction[J]. MARINE CHEMISTRY,2010,120(40547):25-33.
APA Aguilar-Islas, AM,Wu, JF,Rember, R,Johansen, AM,Shank, LM,&aaguilar@iarc.uaf.edu.(2010).Dissolution of aerosol-derived iron in seawater: Leach solution chemistry, aerosol type, and colloidal iron fraction.MARINE CHEMISTRY,120(40547),25-33.
MLA Aguilar-Islas, AM,et al."Dissolution of aerosol-derived iron in seawater: Leach solution chemistry, aerosol type, and colloidal iron fraction".MARINE CHEMISTRY 120.40547(2010):25-33.
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