Identifying patterns of airborne pollen distribution using a synoptic climatology approach

Paschalidou, Anastasia Κ.; Psistaki, Kyriaki; Charalampopoulos, Athanasios; Vokou, Despoina; Kassomenos, Pavlos; Damialis, Athanasios

doi:10.1016/j.scitotenv.2020.136625

Cited by 12 publications

(6 citation statements)

References 42 publications

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“…Precipitation generally lowers pollen concentrations (Paschalidou et al, 2020). This phenomenon occurs due to wash out (Tormo-Molina et al, 2010), whereby 5 mm * h −1 are necessary for a pronounced effect (Kluska et al, 2020) and is seen also in correlation analysis (Bruffaerts et al, 2018).…”

Section: Meteorological Factorsmentioning

confidence: 99%

The duration and severity of the allergenic pollen season in Istanbul, and the role of meteorological factors

2022

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Information on the allergenic pollen season provides insight on the state of the environment of a region and facilitates allergy symptom management. We present a retrospective analysis of the duration and severity of the allergenic pollen season and the role of meteorological factors in Istanbul, Turkey. Aerobiological sampling from January 2013 to June 2016, pollen identification and counting followed current standard methodology. Pollen seasons were defined according to 95% of the Annual Pollen Integral (APIn) and the season start date was compared with the first day of 5 day consecutive non-zero records. Generalized additive models (GAMs) were created to study the effect of meteorological factors on flowering. The main pollen contributors were taxa of temperate and Mediterranean climates, and neophytic Ambrosia. Cupressaceae, Poaceae, Pinaceae, Quercus and Ambrosia had the greatest relative abundance. The pollen season defined on 95% of the APIn was adequate for our location with total APIns around 10.000 pollen*day*m−3. Woody taxa had generally shorter seasons than herbaceous taxa. In trees, we see precipitation as the main limiting factor for assimilate production prior to anthesis. A severe tree pollen season in 2016 suggests intense synchronous flowering across taxa and populations triggered by favourable water supply in the preceding year. GAM models can explain the effect of weather on pollen concentrations during anthesis. Under the climatic conditions over the study period, temperature had a negative effect on spring flowering trees, and a positive one on summer flowering weeds. Humidity, atmospheric pressure and precipitation had a negative effect on weeds. Our findings contribute to environmental and allergological knowledge in southern Europe and Turkey with relevancy in the assessment of impacts of climate change and the management of allergic disease.

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Section: Meteorological Factorsmentioning

confidence: 99%

The duration and severity of the allergenic pollen season in Istanbul, and the role of meteorological factors

2022

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“…In the Mediterranean area there is a relationship between atmospheric patterns like weather types (WTs) and other natural effects, like dispersion of aerosols [1], wildfires [2] or rainfall characterization [3]. The present study claims that WT studies may be relevant in an analysis of erosive parameters caused by rain.…”

Section: Introductionmentioning

confidence: 86%

The Role of Weather Types in Assessing the Rainfall Key Factors for Erosion in Two Different Climatic Regions

et al. 2020

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This paper compares two different geographical sites, Aveiro and León, from different climatic regions, oceanic and continental, but which share the same type of weather (according to Lamb’s classification). The analysis was carried out over one year, and has revealed that rainfall in Aveiro is heavier and more abundant, with a higher number of raindrops and a longer duration of rain events (on average, 10 min longer than in Leon). Mean raindrop size is 0.45 mm in Aveiro and slightly smaller (0.37 mm) in Leon; in addition, the kinetic energy and linear momentum values in Aveiro are three times higher than those in Leon. A comparison of raindrop size distributions by weather type has shown that for both locations westerly weather presented a higher probability of rainfall, and the gamma distribution parameters for each weather type were independent of the study zone. When the analysis is done for the characteristics of rain related with erosion, the westerly cyclonic weather types (cyclonic west (CW) and cyclonic south-westerly (CSW)) are among the most energetic ones in both locations. However, comparing their five weather types with higher kinetic energy, in Aveiro a westerly component implies higher kinetic energy, while in Leon a southerly component involves more energy in the rain.

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“…En este estudio, se ha utilizado una variante simplificada de la clasificación original, que reduce los 26 tipos originales a sólo 8, rotando ligeramente los límites entre los tipos advectivos y reduciendo el número de categorías (Fernández y Rasilla, 2001). El posible nexo entre la circulación a escala sinóptica y las concentraciones de polen se evaluó aplicando el índice PI (Performance Index; Paschalidou et al, 2020):…”

Section: Materiales Y Métodosunclassified

Clima y concentraciones de polen de gramíneas en el País Vasco

Álvarez

2021

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La información sobre los niveles de calidad del aire en las ciudades españolas raramente incluye las partículas de origen orgánico, de las que el polen es un componente fundamental, responsable de numerosas patologías respiratorias y un buen marcador de los cambios ambientales. Este trabajo analiza la relación entre el polen de gramíneas medido en las tres capitales vascas y las condiciones atmosféricas, tanto a escala local como regional. Los resultados sugieren que una parte sustancial del polen de gramíneas medido en el País Vasco procede de ámbitos ajenos a esa Comunidad Autónoma, arrastrado por vientos de componente S y E y situaciones sinópticas del SW y SSE.

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Identifying patterns of airborne pollen distribution using a synoptic climatology approach

Cited by 12 publications

References 42 publications

The duration and severity of the allergenic pollen season in Istanbul, and the role of meteorological factors

The duration and severity of the allergenic pollen season in Istanbul, and the role of meteorological factors

The Role of Weather Types in Assessing the Rainfall Key Factors for Erosion in Two Different Climatic Regions

Clima y concentraciones de polen de gramíneas en el País Vasco

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