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DOI | 10.1002/2016JD025541 |
Evolution of trace elements in the planetary boundary layer in southern China: Effects of dust storms and aerosol-cloud interactions | |
Li, Tao1; Wang, Yan1; Zhou, Jie2; Wang, Tao3,4; Ding, Aijun5,6; Nie, Wei3,5,6; Xue, Likun3; Wang, Xinfeng3; Wang, Wenxing3 | |
2017-03-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Aerosols and cloud water were analyzed at a mountaintop in the planetary boundary layer in southern China during March-May 2009, when two Asian dust storms occurred, to investigate the effects of aerosol-cloud interactions (ACIs) on chemical evolution of atmospheric trace elements. Fe, Al, and Zn predominated in both coarse and fine aerosols, followed by high concentrations of toxic Pb, As, and Cd. Most of these aerosol trace elements, which were affected by dust storms, exhibited various increases in concentrations but consistent decreases in solubility. Zn, Fe, Al, and Pb were the most abundant trace elements in cloud water. The trace element concentrations exhibited logarithmic inverse relationships with the cloud liquid water content and were found highly pH dependent with minimum concentrations at the threshold of pH similar to 5.0. The calculation of Visual MINTEQ model showed that 80.7-96.3% of Fe(II), Zn(II), Pb(II), and Cu(II) existed in divalent free ions, while 71.7% of Fe(III) and 71.5% of Al(III) were complexed by oxalate and fluoride, respectively. ACIs could markedly change the speciation distributions of trace elements in cloud water by pH modification. The in-cloud scavenging of aerosol trace elements likely reached a peak after the first 2-3h of cloud processing, with scavenging ratios between 0.12 for Cr and 0.57 for Pb. The increases of the trace element solubility (4-33%) were determined in both in-cloud aerosols and postcloud aerosols. These results indicated the significant importance of aerosol-cloud interactions to the evolution of trace elements during the first several cloud condensation/evaporation cycles. |
英文关键词 | trace elements aerosol-cloud interactions dust storms speciation solubility scavenging |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000399655200019 |
WOS关键词 | LIQUID WATER-CONTENT ; MOUNTAIN SITE ; CHEMICAL-CHARACTERIZATION ; ORGANIC COMPLEXATION ; EAST CHINA ; IRON ; PARTICLES ; FOG ; SOLUBILITY ; DROPLETS |
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/33849 |
专题 | 气候变化 |
作者单位 | 1.Shandong Univ, Sch Environm Sci & Engn, Jinan, Peoples R China; 2.Shandong Prov Environm Informat & Monitoring Ctr, Jinan, Peoples R China; 3.Shandong Univ, Environm Res Inst, Jinan, Peoples R China; 4.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Hong Kong, Peoples R China; 5.Nanjing Univ, Inst Climate & Global Change Res, Nanjing, Jiangsu, Peoples R China; 6.Nanjing Univ, Sch Atmospher Sci, Nanjing, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Tao,Wang, Yan,Zhou, Jie,et al. Evolution of trace elements in the planetary boundary layer in southern China: Effects of dust storms and aerosol-cloud interactions[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(6). |
APA | Li, Tao.,Wang, Yan.,Zhou, Jie.,Wang, Tao.,Ding, Aijun.,...&Wang, Wenxing.(2017).Evolution of trace elements in the planetary boundary layer in southern China: Effects of dust storms and aerosol-cloud interactions.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(6). |
MLA | Li, Tao,et al."Evolution of trace elements in the planetary boundary layer in southern China: Effects of dust storms and aerosol-cloud interactions".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.6(2017). |
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