Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD029338 |
Aerosolization of Crude Oil-Dispersant Slicks Due to Bubble Bursting | |
Sampath, Kaushik1,2; Afshar-Mohajer, Nima3; Chandrala, Lakshmana D.1; Heo, Won-Seok1; Gilbert, Joshua1; Austin, David1; Koehler, Kirsten3; Katz, Joseph1 | |
2019-05-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:10页码:5555-5578 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Bubble bursting is a primary source of marine aerosols, yet little is known about particle emissions due to the bubble bursting in slicks containing oil-dispersant mixtures. In this study, bubbles with mode sizes of 86m (denoted as small), 178m (medium), and 595m (large) are injected into a seawater column covered by slicks of crude oil, pure dispersant, and dispersant premixed with oil at a ratio of 1:25. The aerosol size distributions are monitored in the 0.5- to 20-m and 10- to 380-nm ranges both in clean and ambient air environments. In ambient air, a tenfold increase in submicron particle concentration occurs when large bubbles burst on slicks of 500-m dispersant premixed with oil at a ratio of 1:25 oil or 50-m pure dispersant. Yet, in multiple tests performed at different ambient particle concentrations, the elevated size distributions persistently maintain the same shape as that of the ambient air. In contrast, smaller bubbles and tests not involving dispersants do not cause such an increase. Nanodroplets are also generated by large bubbles in particle-free air, but their concentrations are much lower. All plumes generate micron-sized aerosols, but trends vary. For the same contaminant, the microdroplet concentration decreases with increasing slick thickness. Particularly striking is a reduction of 2 orders of magnitude in the microdroplet concentration when medium and small bubbles burst on 500-m crude oil slicks. Chemical analysis of air and particulates collected from filters sampling the particles confirms the presence of airborne oil above the slicks. |
英文关键词 | oily aerosols crude oil dispersant micro-aerosols nano-aerosols bubble bursting |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000471237200024 |
WOS关键词 | FINE PARTICULATE MATTER ; MOLECULAR-DYNAMICS SIMULATIONS ; FILM DROP PRODUCTION ; JET DROPS ; GENERATION MECHANISM ; ULTRAFINE PARTICLES ; SPILL ; SURFACTANT ; WATER ; SIZE |
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/183357 |
专题 | 气候变化 |
作者单位 | 1.Johns Hopkins Univ, Dept Mech Engn, Baltimore, MD 21218 USA; 2.US Naval Res Lab, Acoust Div, Washington, DC USA; 3.Johns Hopkins Bloomberg Sch Publ Hlth, Dept Environm Hlth Sci, Baltimore, MD USA |
推荐引用方式 GB/T 7714 | Sampath, Kaushik,Afshar-Mohajer, Nima,Chandrala, Lakshmana D.,et al. Aerosolization of Crude Oil-Dispersant Slicks Due to Bubble Bursting[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(10):5555-5578. |
APA | Sampath, Kaushik.,Afshar-Mohajer, Nima.,Chandrala, Lakshmana D..,Heo, Won-Seok.,Gilbert, Joshua.,...&Katz, Joseph.(2019).Aerosolization of Crude Oil-Dispersant Slicks Due to Bubble Bursting.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(10),5555-5578. |
MLA | Sampath, Kaushik,et al."Aerosolization of Crude Oil-Dispersant Slicks Due to Bubble Bursting".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.10(2019):5555-5578. |
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