The Use of Trajectory Cluster Analysis to Evaluate the Long-Range Transport of Black Carbon Aerosol in the South-Eastern Baltic Region

Abstract

Trajectory cluster analysis and source-receptor models (the potential source contribution function (PSCF), concentration weighted trajectories (CWT), and trajectory source apportionment (TSA)) were applied to investigate the source-receptor relationship for the aerosol black carbon (BC) measured at the coastal site (Preila, 55.55°N, 21.04°E) during 2013. The main sources and paths of advection to the south-eastern Baltic region and its relation to black carbon concentration were identified. The 72 h backward trajectories of air masses arriving at Preila from January to December 2013 were determined and were categorized by clustering them into six clusters. Subsequently, BC levels at Preila associated with each air mass cluster during this period were analyzed. The PSCF and CWT analysis shows that, on high BC concentration days, the air masses commonly originated and passed over southern regions of Europe before arriving at Preila in winter, while a strong impact of wildfires was observed in spring.

Pollution Characteristics, Transport Pathways, and Potential Source Regions of PM2.5 and PM10 in Changchun City in 2018

“…However, combined with the research results from some studies [ 25 , 34 , 35 ], it could be found that even if the W ij was introduced, the result of PSCF will still appear to show higher extreme values in some grids far away from the research area. This was due to the fact that the number of trajectories that passed through these grids was lower, so the total residence time was also lower.…”

Odds and ends of atmospheric mercury in Europe and over northern Atlantic Ocean: Temporal trends of 25 years of measurements

“…2013). It is based on a statistical model and can incorporate meteorological information in its analysis scheme to identify the average concentration in areas for pollutants based on a conditional probability that an air parcel that passed through a cell with a gradient concentration displays a high concentration at the trajectory endpoint (Ashbaugh et al 1985, Byčenkienė, et al 2014. In this study, the assessment was performed on annual bases, the concentrations in grid cells were calculated by counting the average concentration of trajectory segment end points that terminate within each cell as described by Byčenkienė, et al (2014) and Tang et al (2018).…”

Distribution, Material and Chemical Composition of Sedimentary Matter of Rainfall on the Territory of the Kaliningrad Region Rf

“…Так как исследуемый регион находится на пути западного трансграничного атмосферного переноса воздушных масс, значительное количество субмикронных сфер сгорания в составе дождевых осадков может быть связано с деятельностью промышленноиндустриальных комплексов Западной Европы. Источниками эмиссий сажи могут являться как локальные источники, печные дымовые трубы жилого сектора региона, так и удаленные [6,7].…”