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DOI10.1029/2018JD028665
Abundance and Emission Flux of the Anthropogenic Iron Oxide Aerosols From the East Asian Continental Outflow
Yoshida, Atsushi1; Ohata, Sho1; Moteki, Nobuhiro1; Adachi, Kouji2; Mori, Tatsuhiro3; Koike, Makoto1; Takami, Akinori4
2018-10-16
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
EISSN2169-8996
出版年2018
卷号123期号:19页码:11194-11209
文章类型Article
语种英语
国家Japan
英文摘要

Anthropogenic iron oxide (FeOx) aerosols can affect atmospheric radiation, marine biogeochemistry, and human health. However, due to lack of observational data, their atmospheric abundance and emission flux are not well understood. In this study, we observed size-resolved concentrations of FeOx (170-2100 nm) and black carbon (BC, 70-850 nm) aerosols at a remote site in the East China Sea in March 2016 using a modified single-particle soot photometer (SP2). Light signals measured by the SP2 and particle morphology and compositions analyzed by a transmission electron microscope revealed that most of the observed FeOx aerosols are of anthropogenic origin. Clear correlations were found between mass concentrations of FeOx and BC (R-2 = 0.717) and between FeOx and carbon monoxide (CO) (R-2 = 0.718) in air masses from China, indicating that their emission sources are spatially similar. The correlation slopes of mass concentration (ng/m(3)) are similar to 0.3 and 0.0015, respectively. Based on the correlation slopes and emission inventories of BC and CO in China, we estimated emission flux of anthropogenic FeOx aerosols from China to be 0.21-0.49 FeTg/yr. Based on the observed size distribution and previous studies on mass fraction of FeOx and non-FeOx, we also estimated emission flux of anthropogenic Fe (FeOx + non-FeOx) in PM10 as 0.74-1.7 FeTg/yr. These emission fluxes from China are comparable to global emission fluxes in currently reported inventories of anthropogenic Fe (0.51-1.91 FeTg/yr). Our results suggest that the current emission inventories of anthropogenic Fe are underestimated.


领域气候变化
收录类别SCI-E
WOS记录号WOS:000448374800024
WOS关键词PARTICLE SOOT PHOTOMETER ; BLACK CARBON AEROSOLS ; FLY-ASH ; CLIMATE ; NANOPARTICLES ; DEPOSITION ; TRANSPORT ; DIOXIDE ; OZONE ; CHINA
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向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/33586
专题气候变化
作者单位1.Univ Tokyo, Grad Sch Sci, Dept Earth & Planetary Sci, Tokyo, Japan;
2.Meteorol Res Inst, Tsukuba, Ibaraki, Japan;
3.Tokyo Univ Sci, Fac Sci, Dept Phys, Div 1, Tokyo, Japan;
4.Natl Inst Environm Studies, Tsukuba, Ibaraki, Japan
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Yoshida, Atsushi,Ohata, Sho,Moteki, Nobuhiro,et al. Abundance and Emission Flux of the Anthropogenic Iron Oxide Aerosols From the East Asian Continental Outflow[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(19):11194-11209.
APA Yoshida, Atsushi.,Ohata, Sho.,Moteki, Nobuhiro.,Adachi, Kouji.,Mori, Tatsuhiro.,...&Takami, Akinori.(2018).Abundance and Emission Flux of the Anthropogenic Iron Oxide Aerosols From the East Asian Continental Outflow.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(19),11194-11209.
MLA Yoshida, Atsushi,et al."Abundance and Emission Flux of the Anthropogenic Iron Oxide Aerosols From the East Asian Continental Outflow".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.19(2018):11194-11209.
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