Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-5737-2019 |
Investigation of coastal sea-fog formation using the WIBS (wideband integrated bioaerosol sensor) technique | |
Daly, Shane M.1; 39;Connor, David J.2 | |
2019-04-30 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:8页码:5737-5751 |
文章类型 | Article |
语种 | 英语 |
国家 | Ireland |
英文摘要 | A wideband integrated bioaerosol sensor (WIBS-4) was deployed in Haulbowline Island, Cork Harbour, to detect fluorescence particles in real time during July and September 2011. A scanning mobility particle sizer (SMPS) was also installed providing sizing analysis of the particles over the 10-450 nm range. During the campaign, multiple fog formation events occurred; they coincided with dramatic increases in the recorded fluorescent particle counts. The WIBS sizing and fluorescence intensity profiles indicated that the origin of the signals was potentially non-biological in nature (i.e. PBAPs, primary biological aerosol particles). Furthermore, the data did not support the presence of known fluorescing chemical particles like SOA (secondary organic aerosol). Complementary laboratory studies showed that the field results could potentially be explained by the adsorption of molecular iodine onto water droplets to form I-2. (H2O)(x) complexes. The release of iodine into the coastal atmosphere from exposed kelp at low tides has been known for many years. This process leads to the production of small IxOy particles, which can act as cloud condensation nuclei (CCN). While the process of molecular iodine release from coastal kelp sources, subsequent particle formation, and the observations of sea mists and fogs have been studied in detail, this study provides a potential link between the three phenomena. Of mechanistic interest is the fact that molecular iodine included into (rather than on) water droplets does not appear to fluoresce as measured using WIBS instrumentation. The study indicates a previously unsuspected stabilizing transport mechanism for iodine in the marine environment. Hence the stabilization of the molecular form would allow its more extensive distribution throughout the troposphere before eventual photolysis. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000466601600002 |
WOS关键词 | CHARGE-TRANSFER COMPLEXES ; BIOLOGICAL AEROSOL-PARTICLES ; IODINE OXIDE ; HOMOGENEOUS NUCLEATION ; LAMINARIA-DIGITATA ; LATEX SPHERES ; FLUORESCENCE ; POLLEN ; ONLINE ; CALIBRATION |
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/182549 |
专题 | 地球科学 |
作者单位 | 1.Univ Coll Cork, Sch Chem, Cork, Ireland; 2.Univ Coll Cork, Environm Res Inst, Cork, Ireland; 3.Technol Univ Dublin, Sch Chem & Pharmaceut Sci, Dublin, Ireland |
推荐引用方式 GB/T 7714 | Daly, Shane M.,39;Connor, David J.. Investigation of coastal sea-fog formation using the WIBS (wideband integrated bioaerosol sensor) technique[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(8):5737-5751. |
APA | Daly, Shane M.,&39;Connor, David J..(2019).Investigation of coastal sea-fog formation using the WIBS (wideband integrated bioaerosol sensor) technique.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(8),5737-5751. |
MLA | Daly, Shane M.,et al."Investigation of coastal sea-fog formation using the WIBS (wideband integrated bioaerosol sensor) technique".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.8(2019):5737-5751. |
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