Bousiotis, Dimitrios 
ORCID: 0000-0002-5853-0624
(2021).
Factors determining the occurrence and characteristics of new particle formation events - A study over a continent.
University of Birmingham.
Ph.D.
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Bousiotis2021PhD.pdf
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Abstract
New Particle Formation (NPF) events, an important source of ultrafine particles in the atmosphere, were studied in multiple sites across Europe. Apart from the importance of meteorological conditions and atmospheric composition variables and compounds, such as the solar radiation intensity, the relative humidity or the condensation sink in the occurrence and development of the events, the importance of the origin of the incoming air masses and the specific characteristics that come with them is underlined. The increased formation rate of particles of 10 nm diameter calculated in the present study (being at a greater size than that of the initial particle formation occurring at about 1.5 nm and thus affected as a metric by the growth of the particles) and growth rates observed within the urban environment are associated with the increased presence of condensable species found in such environments, regardless of the geographical location within the European continent.
The NPF process is also studied according to the different aspects that define it, the frequency of the events, the formation and growth rates of the particles, and the specific role of each one of the atmospheric variables was calculated throughout Europe using the large dataset available, providing an insight of the effect of these variables on the NPF mechanisms. Finally, the range of the effect of these events on the ultrafine particle composition in each area was studied and the importance of the events in the air quality of a given area is displayed.
| Type of Work: | Thesis (Doctorates > Ph.D.) | |||||||||
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| Award Type: | Doctorates > Ph.D. | |||||||||
| Supervisor(s): |
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| Licence: | All rights reserved | |||||||||
| College/Faculty: | Colleges (2008 onwards) > College of Life & Environmental Sciences | |||||||||
| School or Department: | School of Geography, Earth and Environmental Sciences, Department of Earth and Environmental Sciences | |||||||||
| Funders: | None/not applicable | |||||||||
| Subjects: | G Geography. Anthropology. Recreation > GE Environmental Sciences | |||||||||
| URI: | http://etheses.bham.ac.uk/id/eprint/11595 |
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