Probing key organic substances driving new particle growth initiated by iodine nucleation in coastal atmosphere
Probing key organic substances driving new particle growth initiated by iodine nucleation in coastal atmosphere
复制标题
探索沿海大气中由碘成核引发的新颗粒生长的关键有机物质
DOI:
10.5194/acp-2020-345-supplement
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发表时间:
2020-04
影响因子:
6.3
通讯作者:
余欢
中科院分区:
文献类型:
--
作者:
Yibei Wan Xiangpeng Huang Bin Jiang;Manfei Lin Deming Xia Yuhong Liao Jingwen Chen;Jian Zhen Yu;余欢
Abstract. Unlike the deep understanding of highly oxygenated organic molecules (HOMs) driving continental new particle formation (NPF), little is known about the organic compounds involved in coastal and open-ocean NPF. On the coastline of China we observed intense coastal NPF events initiated by iodine nucleation, but particle growth to cloud condensation nuclei (CCN) sizes was dominated by organic compounds. This article reveals a new group of C18,30HhOoNn and C20,24,28,33HhOo compounds with specific double-bond equivalents and oxygen atom numbers in new sub 20 nm coastal iodine particles by using ultrahigh-resolution Fourier transform–ion cyclotron resonance mass spectrometry (FT-ICR-MS). We proposed these compounds are oxygenated or nitrated products of long-chain unsaturated fatty acids, fatty alcohols, nonprotein amino acids or amino alcohols emitted mutually with iodine from coastal biota or biologically active sea surface. Group contribution method estimated that the addition of –ONO2, –OH and –C=O groups to the precursors reduced their volatility by 2–7 orders of magnitude and thus made their products condensable onto new iodine particles in the coastal atmosphere. Nontarget MS analysis also provided a list of 440 formulas of iodinated organic compounds in size-resolved aerosol samples during the iodine NPF days, which facilitates the understanding of unknown aerosol chemistry of iodine.
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DOI:
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发表时间:
2004
期刊:
--
影响因子:
--
作者:
通讯作者:
--
DOI:
10.5194/acp-16-14527-2016
发表时间:
2016-11
期刊:
Atmos. Chem. Phys.
影响因子:
--
作者:
Wang D. F.;Chen J. M.;Worsnop D. R.;Wang Lin
通讯作者:
Wang Lin
影响因子:
6.3
作者:
Yonghong Wang;M. Riva;Hongbin Xie;L. Heikkinen;S. Schallhart;Q. Zha;Chao Yan;Xucheng He;O. Per
通讯作者:
Yonghong Wang;M. Riva;Hongbin Xie;L. Heikkinen;S. Schallhart;Q. Zha;Chao Yan;Xucheng He;O. Per
影响因子:
9.8
作者:
Ning, Cuiping;Gao, Yuan;Chen, Jiping
通讯作者:
Chen, Jiping
影响因子:
3.8
作者:
F. Gelin;J. Volkman;J. D. Leeuw;J. Damsté
通讯作者:
F. Gelin;J. Volkman;J. D. Leeuw;J. Damsté