The analysis of the Corylus, Alnus and Betula pollen seasons in Toruń in 2014 and 2016

Filbrandt-Czaja, Anna; Adamska, Edyta

doi:10.12775/eq.2018.018

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…The pollen count of grass is determined by the diversity of local flora and weather conditions, especially by the air temperature and relative humidity (Puc & Puc, 2004). According to numerous authors, temperature in the period preceding pollen shedding has a significant impact on the beginning of the pollen season (Frenguelli, et al 1991;Frei, 1998;Rodriguez-Rajo, et al 2004;Emberlin, et al 2007;Kim, et al 2011;Piotrowska-Weryszko, 2013;Filbrandt-Czaja & Adamska 2018;Kubik-Komar, et al 2018) and this agree with our study.…”

Section: Compare Means Of Tapc With Wind Directions In Khartoum City 2018supporting

confidence: 93%

The Relationship between Metrological Parameters and Total Airborne Pollen Concentration in Atmosphere of Khartoum City During 2018

Motwaly¹,

Elfadil²,

Musa³

2021

JFST

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This study is aimed to find out the effect and relationship between metrological parameters and total airborne pollen concentration in atmosphere in Khartoum city (Sudan). For that purpose, one-year data during 2018 of Total Airborne Pollen Concentration (TAPC) and meteorological parameters is utilized. Pollen concentration in the atmosphere was measured using Non-volumetric air sampler (Vertical cylinder spore trap). The descriptive statistic of TAPC and metrological parameters were presented. The result showed TAPC in 2018 reached to their maximum in August (37.5/m³), and the minimum in June (14/ m³). Analysis of the relationship between TAPC and meteorological parameters showed that variations in the pollen concentrations were mainly affected by maximum temperature. In addition, there were substantial differences in these relationships in different seasons. In Autumn, they were affected by the rain falls, maximum temperature and relative humidity; in summer, they were affected by maximum temperature; and in winter, they were affected by maximum temperature and relative humidity. Temperature, rain falls and relative humidity promote plant growth and blooming. As well as the results show wind direction was significant on seasonally TAPC especially in Autumn. The results found significant effects between the meteorological on TAPC, were it is showed 72 % are affecting on TAPC refer to meteorological parameters and 28 % refer to another factors.

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Section: Compare Means Of Tapc With Wind Directions In Khartoum City 2018supporting

confidence: 93%

The Relationship between Metrological Parameters and Total Airborne Pollen Concentration in Atmosphere of Khartoum City During 2018

Motwaly¹,

Elfadil²,

Musa³

2021

JFST

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“…The higher the average temperature during this period, the earlier hazel starts shedding pollen. According to numerous authors, temperature in the period preceding pollen shedding has a significant impact on the beginning of the pollen season of trees that start shedding pollen at the turn of winter and spring (Frenguelli et al 1991;Frei, 1998;Rodriguez-Rajo et al 2004;Emberlin et al 2007;Kim et al 2011;Piotrowska-Weryszko 2013;Filbrandt-Czaja and Adamska 2018;Kubik-Komar et al 2018). Also statistically significant correlation coefficients were demonstrated for relative humidity 25-30 days before the season and sunshine hours -180 to 210 before the season (Table 3).…”

Section: Discussionmentioning

confidence: 90%

The impact of weather conditions on hazel pollen concentration in Sosnowiec (Poland) in 1997–2019

Dąbrowska-Zapart

Niedźwiedź

2020

Aerobiologia

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The goal of this study was to compare hazel pollen seasons in Sosnowiec in 1997–2019 and to analyse the impact of weather conditions on these seasons. The measurements were conducted using a volumetric method with a Burkard spore trap. The duration of pollen seasons was determined using the 98% method. SPI (Seasonal Pollen Index) was calculated as the sum of daily pollen concentrations in a given season. The measurements showed that high temperatures in January and February had an impact on the beginning of the hazel pollen season. They revealed that there are positive correlations with temperatures and sunshine hours long before the season, i.e. 210–180 days before. The daily hazel pollen concentration in Sosnowiec showed a positive and statistically significant correlation with air temperature, sunshine hours, and average and maximum wind speed. Negative correlation was demonstrated for snow cover depth and relative humidity of the air. Daily concentration levels depend also on the type of weather front as well as direction of air mass flow and its type. Variance analysis showed that the highest concentrations of hazel pollen grains were recorded when warm air moves from the south and south–western direction, whereas the lowest ones were noted for air moving from the east, south–east, north and north–east directions. Atmospheric precipitation, snow cover depth, and average, maximum, minimum and near-the-ground temperatures in the season also had an impact on the SPI of hazel pollen grains. High positive correlation coefficients were also observed in the case of thermal conditions, sunshine hours, relative humidity and precipitation from July to September in the year preceding a given pollen season. The duration of the hazel pollen season depends on precipitation, snow cover depth and temperature during a given season.

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“…We chose the widespread shrub species Corylus avellana (hazel) and tree species Alnus glutinosa (common alder) and Betula pendula (silver birch), which are characterized by a high allergenicity of their pollen and the availability of common allergens (cross-reactive Bet v1) (Biedermann et al 2019 ; Niederberger et al 1998 ; Weber 2003 ). These species are monoecious with typical long catkins containing only male flowers (Filbrandt-Czaja and Adamska 2018 ). Hazel and alder flower early in January to March, whereas birch flowers later in March to June (only in northern latitudes).…”

Section: Methodsmentioning

confidence: 99%

Establishing the twig method for investigations on pollen characteristics of allergenic tree species

2021

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The twig method in climate chambers has been shown to successfully work as a proxy for outdoor manipulations in various experimental setups. This study was conducted to further establish this method for the investigation of allergenic pollen from tree species (hazel, alder, and birch). Direct comparison under outdoor conditions revealed that the cut twigs compared to donor trees were similar in the timing of flowering and the amount of pollen produced. Cut twigs were able to flower in climate chambers and produced a sufficient amount of pollen for subsequent laboratory analysis. The addition of different plant or tissue fertilizers in the irrigation of the twigs did not have any influence; rather, the regular exchange of water and the usage of fungicide were sufficient for reaching the stage of flowering. In the experimental setup, the twigs were cut in different intervals before the actual flowering and were put under warming conditions in the climate chamber. An impact of warming on the timing of flowering/pollen characteristics could be seen for the investigated species. Therefore, the twig method is well applicable for experimental settings in pollen research simulating, e.g., accelerated warming under climate change.

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The analysis of the Corylus, Alnus and Betula pollen seasons in Toruń in 2014 and 2016

Cited by 3 publications

References 7 publications

The Relationship between Metrological Parameters and Total Airborne Pollen Concentration in Atmosphere of Khartoum City During 2018

The Relationship between Metrological Parameters and Total Airborne Pollen Concentration in Atmosphere of Khartoum City During 2018

The impact of weather conditions on hazel pollen concentration in Sosnowiec (Poland) in 1997–2019

Establishing the twig method for investigations on pollen characteristics of allergenic tree species

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