Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-3937-2018 |
Secondary sulfate is internally mixed with sea spray aerosol and organic aerosol in the winter Arctic | |
Kirpes, Rachel M.1; Bondy, Amy L.1; Bonanno, Daniel2; Moffet, Ryan C.2,8; Wang, Bingbing3,4,5; Laskin, Alexander3,9; Ault, Andrew P.1,6; Pratt, Kerri A.1,7 | |
2018-03-20 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:6页码:3937-3949 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
英文摘要 | Few measurements of aerosol chemical composition have been made during the winter-spring transition (following polar sunrise) to constrain Arctic aerosol-cloud-climate feedbacks. Herein, we report the first measurements of individual particle chemical composition near Utqiagvik (Barrow), Alaska, in winter (seven sample days in January and February 2014). Individual particles were analyzed by computer-controlled scanning electron microscopy with energy dispersive X-ray spectroscopy (CCSEM-EDX, 24 847 particles), Raman microspectroscopy (300 particles), and scanning transmission X-ray microscopy with nearedge X-ray absorption fine structure spectroscopy (STXM-NEXAFS, 290 particles). Sea spray aerosol (SSA) was observed in all samples, with fresh and aged SSA comprising 99 %, by number, of 2.5-7.5 mu m diameter particles, 6595% from 0.5-2.5 mu m, and 50-60% from 0.1-0.5 mu m, indicating SSA is the dominant contributor to accumulation and coarse-mode aerosol during the winter. The aged SSA particles were characterized by reduced chlorine content with 94 %, by number, internally mixed with secondary sulfate (39 %, by number, internally mixed with both nitrate and sulfate), indicative of multiphase aging reactions during transport. There was a large number fraction (40% of 1.0-4.0 mu m diameter particles) of aged SSA during periods when particles were transported from near Prudhoe Bay, consistent with pollutant emissions from the oil fields participating in atmospheric processing of aerosol particles. Organic carbon and sulfate particles were observed in all samples and comprised 40-50 %, by number, of 0.1-0.4 mu m diameter particles, indicative of Arctic haze influence. Soot was internally mixed with organic and sulfate components. All sulfate was mixed with organic carbon or SSA particles. Therefore, aerosol sources in the Alaskan Arctic and resulting aerosol chemical mixing states need to be considered when predicting aerosol climate effects, particularly cloud formation, in the winter Arctic. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000427963000001 |
WOS关键词 | LONG-TERM TRENDS ; CHEMICAL-COMPOSITION ; ATMOSPHERIC AEROSOL ; MIXING STATE ; RAMAN MICROSPECTROSCOPY ; TROPOSPHERIC AEROSOLS ; BOUNDARY-LAYER ; SALT PARTICLES ; BLACK CARBON ; NITRIC-ACID |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/23910 |
专题 | 地球科学 |
作者单位 | 1.Univ Michigan, Dept Chem, Ann Arbor, MI 48109 USA; 2.Univ Pacific, Dept Chem, Stockton, CA 95211 USA; 3.Pacific Northwest Natl Lab, Environm Mol Sci Lab, Richland, WA USA; 4.Xiamen Univ, State Key Lab Marine & Environm Sci, Xiamen, Peoples R China; 5.Xiamen Univ, Coll Ocean & Earth Sci, Xiamen, Peoples R China; 6.Univ Michigan, Dept Environm Hlth Sci, Ann Arbor, MI 48109 USA; 7.Univ Michigan, Dept Earth & Environm Sci, Ann Arbor, MI 48109 USA; 8.Sonoma Technol, Petaluma, CA USA; 9.Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA |
推荐引用方式 GB/T 7714 | Kirpes, Rachel M.,Bondy, Amy L.,Bonanno, Daniel,et al. Secondary sulfate is internally mixed with sea spray aerosol and organic aerosol in the winter Arctic[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(6):3937-3949. |
APA | Kirpes, Rachel M..,Bondy, Amy L..,Bonanno, Daniel.,Moffet, Ryan C..,Wang, Bingbing.,...&Pratt, Kerri A..(2018).Secondary sulfate is internally mixed with sea spray aerosol and organic aerosol in the winter Arctic.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(6),3937-3949. |
MLA | Kirpes, Rachel M.,et al."Secondary sulfate is internally mixed with sea spray aerosol and organic aerosol in the winter Arctic".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.6(2018):3937-3949. |
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