Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016JD026030 |
Regional and local new particle formation events observed in the Yangtze River Delta region, China | |
Dai, Liang1; Wang, Honglei2; Zhou, Luyu1; An, Junlin2; Tang, Lili3; Lu, Chunsong2; Yan, Wenlian4; Liu, Ruiyang4; Kong, Shaofei5; Chen, Mindong1; Lee, Shanhu6; Yu, Huan1 | |
2017-02-27 | |
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:4 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | To study the spatial inhomogeneity of new particle formation (NPF) in the polluted atmosphere of China, we conducted simultaneous measurements at an urban site near a petrochemical industrial area and a regional background site in the Yangtze River Delta region from September to November 2015. At the urban site we observed a type of local NPF event (number of events: n = 5), in which nucleation was limited to a small area but persisted for 6.8 h on average during the daytime. Formation rates of 5 nm particles (J(5)) were found to be correlated positively with the H2SO4 proxy (log J(5) versus log[H2SO4] slope near 1) in both local and regional events. Furthermore, J(5) was enhanced by the anthropogenic volatile organic carbon (VOC) plumes from nearby industrial area in the local events compared to the regional events. Size-dependent aerosol dynamics calculation showed that in comparison with the observed regional events, the local events were featured with high nucleation rate (J(1.3) > 1000 cm(-3) s(-1)), high growth rate of sub-3 nm particles (GR(sub-3) > 20 nm h(-1)), and high number concentration of nucleation mode particles (mean peak N5-20: 6x10(4) cm(-3)). Considering these features, the local NPF events of anthropogenic origin may also be an important contributor to cloud condensation nuclei concentrations in urban and regional scales. In addition, the comparison of simultaneous regional NPF events between the two sites (number of events: n=7) suggested that regional NPF intensity may be underestimated by the single-point measurement at an urban site, due to the heterogeneity of air masses. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000396121200021 |
WOS关键词 | SULFURIC-ACID ; SIZE DISTRIBUTION ; NATURAL-GAS ; AEROSOL ; NUCLEATION ; GROWTH ; URBAN ; EMISSIONS ; CONNECTION ; STICKING |
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/33573 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ Informat Sci & Technol, Sch Environm Sci & Engn, Nanjing, Jiangsu, Peoples R China; 2.Nanjing Univ Informat Sci & Technol, Sch Atmospher Phys, Nanjing, Jiangsu, Peoples R China; 3.Jiangsu Environm Monitoring Ctr, Nanjing, Jiangsu, Peoples R China; 4.Jiangsu Meteorol Observ, Nanjing, Jiangsu, Peoples R China; 5.China Univ Geosci, Dept Atmospher Sci, Wuhan, Peoples R China; 6.Univ Alabama, Dept Atmospher Sci, Huntsville, AL 35899 USA |
推荐引用方式 GB/T 7714 | Dai, Liang,Wang, Honglei,Zhou, Luyu,et al. Regional and local new particle formation events observed in the Yangtze River Delta region, China[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(4). |
APA | Dai, Liang.,Wang, Honglei.,Zhou, Luyu.,An, Junlin.,Tang, Lili.,...&Yu, Huan.(2017).Regional and local new particle formation events observed in the Yangtze River Delta region, China.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(4). |
MLA | Dai, Liang,et al."Regional and local new particle formation events observed in the Yangtze River Delta region, China".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.4(2017). |
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