Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-10537-2019 |
New particle formation, growth and apparent shrinkage at a rural background site in western Saudi Arabia | |
Hakala, Simo1; Alghamdi, Mansour A.2; Paasonen, Pauli1; Vakkari, Ville3,4; Khoder, Mamdouh, I2; Neitola, Kimmo1; Dada, Lubna1; Abdelmaksoud, Ahmad S.2; Al-Jeelani, Hisham2; Shabbaj, Ibrahim I.2; Almehmadi, Fand M.2; Sundstrom, Anu-Maija3; Lihayainen, Heikki3,5; Kerminen, Veli-Matti1; Kontkanen, Jenni1; Kulmala, Markku1,6; Hussein, Tareq1; Hyvarinen, Antti-Pekka3 | |
2019-08-21 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:16页码:10537-10555 |
文章类型 | Article |
语种 | 英语 |
国家 | Finland; Saudi Arabia; South Africa; Norway; Peoples R China |
英文摘要 | Atmospheric aerosols have significant effects on human health and the climate. A large fraction of these aerosols originates from secondary new particle formation (NPF), where atmospheric vapors form small particles that subsequently grow into larger sizes. In this study, we characterize NPF events observed at a rural background site of Hada Al Sham (21.802 degrees N, 39.729 degrees E), located in western Saudi Arabia, during the years 2013-2015. Our analysis shows that NPF events occur very frequently at the site, as 73 % of all the 454 classified days were NPF days. The high NPF frequency is likely explained by the typically prevailing conditions of clear skies and high solar radiation, in combination with sufficient amounts of precursor vapors for particle formation and growth. Several factors suggest that in Hada Al Sham these precursor vapors are related to the transport of anthropogenic emissions from the coastal urban and industrial areas. The median particle formation and growth rates for the NPF days were 8.7 cm(-3) s(-1) (J(7)(nm)) and 7.4 nm h(-1) (GR(7-12nm)), respectively, both showing highest values during late summer. Interestingly, the formation and growth rates increase as a function of the condensation sink, likely reflecting the common anthropogenic sources of NPF precursor vapors and primary particles affecting the condensation sink. A total of 76 % of the NPF days showed an unusual progression, where the observed diameter of the newly formed particle mode started to decrease after the growth phase. In comparison to most long-term measurements, the NPF events in Hada Al Sham are exceptionally frequent and strong both in terms of formation and growth rates. In addition, the frequency of the decreasing mode diameter events is higher than anywhere else in the world. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000482004300004 |
WOS关键词 | SIZE DISTRIBUTION DATA ; SULFURIC-ACID ; FORMATION EVENTS ; LONG-TERM ; AEROSOL NUCLEATION ; ORGANIC-COMPOUNDS ; DISPERSION MODEL ; TECHNICAL NOTE ; SMEAR-II ; HYYTIALA |
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/186099 |
专题 | 地球科学 |
作者单位 | 1.Univ Helsinki, Fac Sci, Inst Atmospher & Earth Syst Res INAR Phys, Helsinki, Finland; 2.King Abdulaziz Univ, Fac Meteorol Environm & Arid Land Agr, Dept Environm Sci, Jeddah, Saudi Arabia; 3.Finnish Meteorol Inst, Helsinki, Finland; 4.North West Univ, Unit Environm Sci & Management, ZA-2520 Potchefstroom, South Africa; 5.Svalbard Integrated Arctic Earth Observing Syst S, Longyearbyen, Norway; 6.Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Aerosol & Haze Lab, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Hakala, Simo,Alghamdi, Mansour A.,Paasonen, Pauli,et al. New particle formation, growth and apparent shrinkage at a rural background site in western Saudi Arabia[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(16):10537-10555. |
APA | Hakala, Simo.,Alghamdi, Mansour A..,Paasonen, Pauli.,Vakkari, Ville.,Khoder, Mamdouh, I.,...&Hyvarinen, Antti-Pekka.(2019).New particle formation, growth and apparent shrinkage at a rural background site in western Saudi Arabia.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(16),10537-10555. |
MLA | Hakala, Simo,et al."New particle formation, growth and apparent shrinkage at a rural background site in western Saudi Arabia".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.16(2019):10537-10555. |
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