scholarly journals Birch (Betula L.) pollen seasons in Cracow in 1991-2008 in relation to meteorological conditions

2012 ◽  
Vol 62 (2) ◽  
pp. 67-75 ◽  
Author(s):  
Dorota Myszkowska ◽  
Katarzyna Piotrowicz

The parameters of the birch pollen seasons in Cracow in 1991-2008 were analysed in relation to some meteorological elements and synoptic situations (circulation types, air masses and atmospheric fronts). Two types of the pollen seasons were distinguished - highly dense and less dense. The first type of the season started on the 15<sup>th</sup> of April (on average), lasted 11-20 days and the maximum daily concentration exceeded 500 pgm<sup>-3</sup>. The less dense type started generally earlier (the first decade of April), lasted more than 20 days and the peak days were unstable. In this type of the pollen season, two peak days were often observed. The relationship between the type of the season and the meteorological conditions before the season was pointed out. Additionally, the influence of circulation types, types of air masses and atmospheric fronts over south-eastern Poland on a given day on the number of days with a daily concentration > 80 pgm<sup>-3</sup> was analysed. The relationship between the pollen season type and meteorological conditions before the season was found, among others, the influence of types of synoptic situations and air masses on the number of days with a concentration of over 80 pgm<sup>-3</sup> was established.

Aerobiologia ◽  
2021 ◽  
Author(s):  
Katarzyna Dąbrowska-Zapart ◽  
Tadeusz Niedźwiedź

AbstractThe study's main objective was to specify the extent to which weather conditions were related to the course of birch pollen seasons in the years 1997–2020. The impact of atmospheric conditions on the daily concentrations of birch pollen grains, the Annual pollen integral (APIn), and the length of pollen seasons were studied. The dependency between each meteorological condition and various features of the birch pollen season was determined using Spearman’s rho correlation, the Kruskal–Wallis test, and cluster analysis with the k-means method. It has been shown that the duration of sunshine and average air temperature occurring within 14 days preceding the season has the most significant influence on the beginning of a birch pollen season. The value of daily birch pollen concentrations in Sosnowiec showed a statistically significant positive correlation with the duration of sunlight and the average and maximum wind speed. The daily concentration also depended on the synoptic situation: the mass airflow direction, the type of air mass inflow, and the type of weather front. The near-ground temperature influenced the APIn of birch pollen grains during the period of 14 days before the beginning of the season and the meteorological conditions occurring in the summer of the preceding year such as the maximum temperature, duration of sunlight, the maximum and average wind speed, and the relative air humidity. It was concluded that the length of birch pollen seasons decreased year by year.


2018 ◽  
Vol 72 (5) ◽  
pp. 1-5
Author(s):  
Agnieszka Lipiec ◽  
Piotr Rapiejko ◽  
Konrad Furmańczyk ◽  
Dariusz Jurkiewicz

Introduction Allergic rhinitis concerns nearly 25% of the Polish population. Among pollen allergens, the most common reasons for allergic rhinitis are: grass, birch and mugwort. Knowledge of the characteristics of pollen seasons is necessary in diagnostics, monitoring of therapy and prevention of allergic rhinitis. Purpose This work aims to analyze the pollen seasons of the most commonly sensitizing plants in the Polish population; grass, birch and mugwort in the years 2003-2017 in Warsaw. Material and methods Measurements of pollen concentration were carried out using the Burkard volumetric apparatus operating in continuous volumetric mode. The analysis of pollen seasons was conducted based on the following characteristics: beginning, end, and length of season, annual sum of daily pollen concentrations, maximum daily concentration, number of days with maximum and threshold concentration. Linear regression together with the Pearson correlation coefficient were used in statistical analysis to study the relationship between variables; furthermore, descriptive characteristics of distributions studied were determined. Results The average date of the beginning of the birch pollen season in the analyzed period is April 10th, and it belongs to seasons of average length (47 days on average). Concentration above 75z/m3, when most allergic people expect allergic symptoms, was recorded for an average of 18 days. The highest daily concentration of birch pollen reaching 6321 grains/m3 (2006, 2012, 2016) exceeded the lowest value of the maximum concentration by almost 20 times (2015). Among the taxa analyzed, the highest values of daily concentration and annual sums were recorded for birch pollen. The average date for the beginning of grass pollination season is on May 13th. It is the longest pollen season (on average 134 days), and the period when concentration exceeded 50z/m3 covered an average of 26 days. The highest daily concentration of grass pollen reaching 496 grains/m3 (2005 and 2007) exceeded the lowest value of maximum concentration by 3.5 times (2016). The average date of the beginning of the brackish pollen season is July 16th. The season lasts 65 days on average, when concentration exceeding 30z/m3 was registered for an average of 12 days. The highest daily concentration of mugwort pollen reaching 154 grains/m3 (2007) exceeded the lowest value of maximum concentration by 4 times (2013). For all analyzed taxa, the strongest correlated variables are the annual sum of daily pollen concentrations (Seasonal Pollen Index) and daily maximum concentration (correlation for birch pollen = 0.92, for grass pollen = 0.88, and for mugwort pollen = 0.91) Conclusions Periods of pollen in the air show certain variation in the analyzed 15-year period. The maximum concentration in the pollen season for the analyzed taxa and the annual sum of daily concentrations of pollen show the highest variability, particularly strongly expressed in the case of birch pollen. There is a linear relationship between the annual sum of daily pollen concentrations and the maximum concentration value as well as the number of days with the threshold concentration for all analyzed taxa. Variability of parameters describing the dynamics of pollen seasons indicates the need to monitor, both by patients with hay fever and physicians, the current information about the concentration of pollen in the air during the pollen season.


2012 ◽  
Vol 63 (2) ◽  
pp. 97-103
Author(s):  
Małgorzata Malkiewicz ◽  
Kamilla Klaczak

This paper presents the results of an analysis of pollen season patterns for taxa which show the strongest allergenic activity (alder, birch, grasses, and mugwort) in 2008 in the air over Wrocław and Olszanica. The study was carried out using the volumetric method (Burkard trap). The results show variation in pollen seasons between the analyzed localities. An attempt was made to find out in which of the sites in question - the urban site or the rural one - there was a greater risk of allergens of the selected plants. The results of the present study show that the alder, birch and grass pollen seasons in 2008 started and ended earlier in Wrocław, and maximum pollen concentrations were definitely lower. But the mugwort pollen season started earlier and ended much later in Olszanica, while maximum pollen concentration of this taxon was more than twice lower than in Wrocław. In 2008 in the investigated localities, the highest pollen concentrations of the plants in question occurred in the following months: alder in February, birch in April, grasses in June, while mugwort in August. In 2008 alder and birch pollen allergen risk was comparable in the investigated urban and rural environment. However, grass and mugwort pollen allergens posed a significantly greater threat in the rural environment than in Wrocław.


2019 ◽  
Vol 108 ◽  
pp. 02012
Author(s):  
Małgorzata Piaskowska-Silarska ◽  
Krzysztof Pytel ◽  
Stanisław Gumuła ◽  
Wiktor Hudy

Abstract. The publication presents an assessment of the impact of meteorological conditions on air quality in a given location. The subject matter of the work is related to problem-review issues in the field of environmental protection and energy management. The publication draws attention to the fact that despite several decades of ecological monitoring of air pollution, only in recent years attention has been paid to the scale of air pollution problem. The study examined the relationship between meteorological elements (wind velocity, relative humidity on the amount of air pollution immissions. Significant impact of precipitation, atmospheric pressure and thermal braking layer was indicated. The possibilities of air quality improvement were presented based on the measurement data concerning the immission of impurities.


2015 ◽  
Vol 68 (4) ◽  
pp. 325-331 ◽  
Author(s):  
Aleksandra Kruczek ◽  
Małgorzata Puc ◽  
Alina Stacewicz ◽  
Tomasz Wolski

The aim of the study was to investigate the concentration of <em>Alnus</em> L., <em>Corylus</em> L. and <em>Betula</em> L. pollen in the village of Gudowo (Western Pomerania, Poland) in the years 2012–2014 in order to estimate the threat of allergenic tree pollen in this rural region. Measurements were performed using the volumetric method (VPPS Lanzoni 2000 pollen sampler). The duration of the pollen season was determined by the 98% method, taking days on which, respectively, 1% and 99% of the annual total pollen grains appeared as the beginning and end of the season. Pollen grains from hazel occurred in the air as the first ones, before pollen grains from alder and birch. The earliest beginning of the hazel pollen season was recorded in 2012, whereas alder and birch pollen seasons started the earliest in 2014. Daily maximum pollen concentrations of the investigated taxa were recorded in 2014. Birch pollen allergens posed the largest threat to pollinosis sufferers. In the years 2012–2014, pollen concentrations equal or higher than threshold values, at which people with pollinosis show allergic symptoms, were recorded most frequently for birch, hazel, and alder (25, 19, and 14 days, respectively). The highest hourly alder pollen concentration was recorded at 16:00 and in the case of hazel at 15:00. The diurnal distribution of birch pollen concentrations does not show any distinct peaks.


2012 ◽  
Vol 61 (1) ◽  
pp. 53-57 ◽  
Author(s):  
Agnieszka Dąbrowska

The start and rate of florescence of <i>Alnus</i>, <i>Corylus</i> and <i>Betula</i> are dependent on meteorological conditions. In the present paper we have analysed the effect of mean, maximum and minimum temperature, relative air humidity and precipitation on the onset of the pollen season as well as on its length and annual count of pollen grains in alder, hazel and birch. The measurement of pollen fall was done by the gravimetric methods with the use of Durham sampler. Correlation coefficients were calculated between the determined characteristics of the pollen season and weather conditions. In the six-year research period 2001-2006 it was observed that low temperatures in January produced a delayed start of the pollen season in alder, hazel and birch. The beginning of flowering in these taxa was also influenced by thermal conditions prevailing directly before the season (ca. 10 days). The pollen season of the trees in question tended to be prolonged alongside with the increase in relative air humidity, but it was shortened due to higher temperatures. The volume of alder and hazel pollen release increased together with the rise in relative air humidity and precipitation. The annual counts of birch pollen increased along with rising temperature and decreasing relative air humidity and precipitation in the season.


2012 ◽  
Vol 65 (2) ◽  
pp. 57-66 ◽  
Author(s):  
Agnieszka Dąbrowska ◽  
Bogusław Michał Kaszewski

The dynamics of flowering and pollen release in anemophilous plants and the length of the particular phases depend largely on the geobotanical features of a region, its climate, meteorological factors, biological characteristics of vegetation, and abundance of pollen resources. The aim of the study was to determine the relationship between the flowering phases in eight <i>Alnus</i> taxa and the dynamics of occurrence and abundance of airborne pollen grains as well as the meteorological factors (maximum and minimum temperature, relative air humidity, maximum wind speed, and precipitation). The flowering phenophases and pollen seasons were studied in 2008–2011. Phenological observations of flowering were conducted in the Maria Curie-Skłodowska University Botanical Garden in Lublin and they involved the following taxa: <i>Alnus crispa</i> var. <i>mollis</i>, <i>A. glutinosa</i>, <i>A. incana</i>, <i>A. incana</i> ‘Aurea’, <i>A. incana</i> ‘Pendula’, <i>A. maximowiczii</i>, <i>A. rubra</i> and <i>A. subcordata</i>. Spearman’s r correlation coefficients were calculated in order to determine the relationship between the dynamics of inflorescence development and meteorological conditions. Aerobiological monitoring using the gravimetric method was employed in the determination of <i>Alnus</i> pollen content in the air. The annual phenological cycles in 2008-2011 varied distinctly in terms of the time of onset of successive flowering phases in the <i>Alnus</i> taxa studied, which depended largely on the taxonomic rank and meteorological factors. The following flowering sequence was revealed in the 2008-2011 growing seasons: <i>A. subcordata</i> (December or January), <i>A. incana</i> ‘Pendula’, <i>A. incana</i>, <i>A. maximowiczii</i>, <i>A. rubra</i>, <i>A. glutinosa</i>, <i>A. incana</i> ‘Aurea’ (February or March), and <i>A. crispa</i> var. <i>mollis</i> (April). The study demonstrated that the pollen of the taxa persisted in the air, on average, from mid-December to early May. The mean length of the flowering period, which coincided with various phases of the pollen season, was 17 days. The <i>Alnus</i> pollen season in 2008 started at the end of January and lasted until mid-March. In 2009, 2010, and 2011, the beginning of the pollen season was recorded in the first week of March and the end in the first week of April. The maximum concentration of airborne <i>Alnus</i> pollen was found at the full bloom stage of mainly <i>A. glutinosa</i> and <i>A. rubra</i>. Inflorescence development was most closely related to temperature and relative air humidity; there was a weaker relationship with wind speed and precipitation.


Alergoprofil ◽  
2021 ◽  
Vol 17 (2) ◽  
pp. 54-59
Author(s):  
Krystyna Piotrowska-Weryszko ◽  
Elżbieta Weryszko-Chmielewska ◽  
Katarzyna Dąbrowska-Zapart ◽  
Monika Ziemianin ◽  
Małgorzata Puc ◽  
...  

Corylus produces allergenic pollen grains that appear in the air in early spring and cause pollen allergy in sensitive people. The aim of this study was to compare the Corylus pollen seasons in 2021 in the following 11 cities in Poland: Bialystok, Bydgoszcz, Cracow, Sosnowiec, Lublin, Olsztyn, Piotrkow Trybunalski, Szczecin, Warsaw, Wroclaw, and Zielona Gora. This research was conducted using the volumetric method and Burkard or Lanzoni pollen samplers. Pollen season duration was determined by the 95% method. The hazel pollen season in 2021 began relatively late, between February 20 and March 1. The season start was recorded earliest in Zielona Gora, while latest in Olsztyn. The highest values of maximum Corylus pollen concentration were recorded in Sosnowiec (230 P/m3) and Zielona Gora (213 P/m3), whereas the lowest ones in Bialystok (27 P/m3) and Bydgoszcz (54 P/m3). In most of these cities, the maximum daily concentration of Corylus pollen grains was recorded in the third 10 days of February or at the beginning of March and only in Lublin and Bialystok the peak value occurred later, on March 16 and March 26, respectively. The highest risk of allergy in people sensitive to the pollen of this taxon was found in Lublin, Olsztyn, and Zielona Gora. The highest values of the annual pollen integral were determined in Lublin, similarly to the previous years.


2016 ◽  
Vol 69 (2) ◽  
Author(s):  
Danuta Stępalska ◽  
Dorota Myszkowska ◽  
Katarzyna Piotrowicz ◽  
Idalia Kasprzyk

The aim of the study was to compare phenological observations of pollen seasons of selected early spring trees. Special attention was paid to meteorological conditions which favored or did not favor tree flowering and pollen release. For this reason, we used phenological observation, pollen counts, and meteorological data in five sites in the center of Kraków in the period 2009–2011. Phenological phases (5) of four tree species: <em>Alnus glutinosa</em>, <em>Alnus incana</em>, <em>Corylus avellana</em>, and <em>Betula pendula</em>, were analyzed. It was found that in case of <em>A. glutinosa</em> the pollen season often preceded the flowering period, while for <em>A. incana</em> those two phenomena were more correlated. As regards <em>Corylus avellana</em>, the beginning of the pollen season and phenological phases was simultaneous. However, pollen grains occurred in the air longer, even by a dozen or so days. The phenological phases and pollen seasons of <em>Alnus</em> and <em>Corylus</em> were dependent on meteorological conditions. To give the definition of the relationship between pollen concentration and weather conditions, Spearman rank correlation analysis was applied. High <em>Alnus</em> and <em>Corylus</em> pollen concentrations were found on sunny days with a maximum temperature over 10°C and no precipitation, and when the snow cover was gone. In case of <em>Betula</em>, the phenological phases of the full pollination period usually coincided with the periods of high pollen concentrations. However, <em>Betula</em> pollen sometimes appears earlier and stays in the air longer than the flowering period of local trees in the nearest vicinity. This situation indicates long-distance transport or secondary deposition.


2012 ◽  
Vol 62 (2) ◽  
pp. 59-66 ◽  
Author(s):  
Krystyna Piotrowska ◽  
Bogusław M. Kaszewski

Early spring flowering plants show large differences in the start dates of pollen emission due to high weather variability in the preceding period. In the present study, the influence of meteorological conditions on the start date of the hazel pollen season in Lublin in the years 2001-2009 was investigated. The aeropalynological study was carried out by the volumetric method using a Lanzoni VPPS 2000 sampler. The start of the hazel pollen season was determined using the 98% method. The differences in particular years of the study were over two months. Hazel pollen grains were recorded earliest in 2007, since from 13 January, and latest in 2003, from 18 March. It was found that accumulated 5-day mean temperature before the season affects the onset of the pollen season. As a result of multiple regression analysis, a statistical model was derived, which shows with great accuracy the relationship of the start of the hazel pollen season with total precipitation and the number of winter days.


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