Showing papers by "George Biskos published in 2020"
TL;DR: A methodology for developing a hybrid emission inventory from transport sector for two port cities located respectively on the Northern Aegean islands of Chios and Lesvos based on top-down and bottom-up approaches is provided.
19 citations
TL;DR: In this paper, the authors compared the size distributions of particles and the levels of Volatile Organic Compounds (VOCs) exhaled by both e-cigarette and tobacco cigarette users.
17 citations
TL;DR: In this article, the authors measured the atmospheric aerosol particle concentration in a small but representative coastal city in the North Aegean Sea during winter and summer of 2016 and found that the average PM2.5 and PM1.0 concentrations at the city centre were respectively 26 and 21μgm−m−3 during the cold period, and 21 and 15μg m−m −3 during a warm period.
9 citations
TL;DR: In this article, the authors performed one-year continuous measurements of aerosol particles down to 1 1/4nm in diameter, for the first time in the Eastern Mediterranean and Middle East (EMME) region, complemented with trace gas data, meteorological variables and retroplume analysis.
Abstract: . To quantify the contribution of new particle formation (NPF) to ultrafine particle number and CCN budgets, one has to understand the mechanisms that govern NPF in different environments and its temporal extent. Here, we study NPF in Cyprus, an Eastern Mediterranean country located at the crossroads of three continents. We performed one-year continuous measurements of aerosol particles down to ~ 1 nm in diameter, for the first time in the Eastern Mediterranean and Middle East (EMME) region. These measurements were complemented with trace gas data, meteorological variables and retroplume analysis. We show that NPF is a very frequent phenomenon at this site and has higher frequencies of occurrence during spring and autumn. NPF events were both of local and regional origin, and the local events occurred frequently during the month with the lowest NPF frequency. Some NPF events exhibited multiple onsets, while others exhibited particle apparent shrinkage in size. Additionally, NPF events were observed during the night-time and during episodes of high desert dust loadings. Particle formation rates and growth rates were comparable to those in urban environments, although our site is a rural one. Meteorological variables and trace gases played a role in explaining the intra-monthly variability of NPF events, but did not explain why summer month had the least NPF frequency. Similarly, pre-existing aerosol loading did not explain the observed seasonality. The month with the least NPF frequency were associated with higher H2SO4 concentrations but lower NOx concentration, which is an indicator of anthropogenic influence. Air masses arriving from the Middle East were not observed during these month, which could suggest that precursor vapors important for nucleation and growth are transported to our site from the Middle East. Further comprehensive measurements of precursor vapors are required to prove this hypothesis.
7 citations
TL;DR: In this article, the size, concentration, and hygroscopicity of ultrafine particles (UFPs) emitted during thermal spraying of ceramic coatings in an industrial setting were measured.
Abstract: We report measurements of the size, concentration, and hygroscopicity of ultrafine particles (UFPs) emitted during thermal spraying of ceramic coatings in an industrial setting High concentrations
6 citations
TL;DR: In this article, the performance of a custom-made differential mobility analyzer (DMA) using different sheath flow straighteners made out of plastic fabric materials or built by 3D printing is evaluated.
2 citations