scholarly journals A Survey of Atmospheric Pollen and Spores in North-Western Nigeria

2018 ◽  
Vol 10 (2) ◽  
pp. 182-192
Author(s):  
Olugbenga Shadrak ALEBIOSU ◽  
Olusola H. ADEKANMBI
Keyword(s):  
Meteorological Parameters ◽  
Airborne Pollen ◽  
Health Concern ◽  
Pollen Types ◽  
Pollen Concentrations ◽  
Atmospheric Pollen ◽  
Local Plants ◽  
Study Sites ◽  
The Impact ◽  
North Western

The incidence of airborne pollen occurring as aeroallergens of varied levels at different periods of the year has generated some public health concern globally. The present study was conducted in order to examine the monthly depositional rate of airborne pollen and fern spores, as well as the impact of meteorological parameters and local plants on pollen distribution at two study sites in Kaduna and Sokoto States of North Western Nigeria. The study spanned a period of one year, during which a modified Tauber pollen sampler was employed in the collection of atmospheric pollen and fern spores; local plants were also enumerated. Residual solution was collected monthly, subjected to acetolysis and the treated residues were viewed for microscopic studies. The results reveal monthly distribution of airborne pollen and fern spore types at the study sites during the sampling period. Dominant pollen types in Kaduna State were those of Alchornea laxiflora, Pinus caribaea, Terminalia sp., Sapotaceae and Poaceae family. Pollen of Syzygium guineense, Alchornea sp., Sapotaceae and Poaceae dominated in Sokoto State. Spores of Pteris sp., Nephrolepis sp. and a trilete fern were also recovered at both locations. Some local plants in the immediate vegetation contributed to the aeroflora of these locations. No significant correlation was recorded between monthly total pollen concentrations and mean monthly meteorological parameters of the locations. It is imperative to investigate the allergenicity of these dominant pollen types, so as to aid pollen hypersensitive individuals in adopting appropriate prophylactic measures.

scholarly journals Análisis del contenido aeropolínico estival en la provincia de Málaga

2001 ◽  
Vol 26 ◽  
pp. 89-98
Author(s):  
Marta Recio ◽  
M. Mar Trigo ◽  
Silvia Docampo ◽  
Baltasar Cabezudo
Keyword(s):  
Airborne Pollen ◽  
Summer Season ◽  
Palabras Clave ◽  
Low Concentrations ◽  
Pollen Content ◽  
Pollen Types ◽  
Pollen Concentrations ◽  
Atmospheric Pollen ◽  
Annual Total ◽  
Total Pollen

RESUMEN. Análisis del contenido aeropolínico estival en la provincia de Málaga. En el presente trabajo se realiza un estudio del contenido polínico de la atmósfera de la provincia de Málaga durante cl periodo estival (Julio-Septiembre) tomando los registros obtenidos durante los últimos años en varias localidades de la provincia: Málaga (1992-1999), Estepona (1995-1997), Antequera (1998-1999) y Nerja (2000). En general, durante estos tres meses se recoge sólo entre el 3 y el 6% del polen anual, estando el espectro aeropolínico estival de Málaga representado básicamente por 14 tipos polínicos: Eucalyptus, Castanea, Parkinsotzia, Cannabis, Apiaceae, Ligustrum, Chenopodiaceae-Amaranthaceae, Palmae, Compositae, Artemisia, Typha, Cyperaceae, Poaceae y U rticaceae. Los tipos que alcanzan mayores concentraciones son Eucalyptus, Chenopodiaceae-Amaranthaceae y Poaceae. El resto de los taxa citados aparecen en concentraciones muy bajas. Determinados taxa presentan concentraciones más elevadas en determinadas estaciones de muestreo: Castanea y Compositae en Antequera, Palmae y Parkinsonia en Málaga, y Artemisia en Nerja. La evolución a lo largo de los tres meses muestra, en general, dos tipos de tendencia: una descendente de Julio a Agosto (presente en todos los tipos polínicos estudiados, excepto en Artemisia y Palinae, y en todas las zonas estudiadas) y otra ascendente, de Agosto a Septiembre, de pequeña intensidad, aunque muy acusada para los dos tipos anteriores y para Chenopodiaceae-Amaranthaceae y Cotnpositae. La mayoría de los tipos polínicos estudiados tienen sus máximos diarios en primavera, estación del año con mayor concentración polínica en el sur de Europa, excepto Eucalyptus, Castanea, Parkinsonia y Cannabis, que generalmente lo tienen en verano, y que alcanzaron máximos históricos relevantes: Eucalyptus en 1994 (112 granos/111 3), Castanea en 1997 (233 granos/m 3), Cannabis en 1998 (28 granos/m 3).Palabras clave. Acrobiología, polen, verano, turismo, alergia, Málaga, sur de España.ABSTRACT. Analysis of the summer airborne pollen contera in the province of Malaga. In this work, a study about the atmospheric pollen content during the period July-September has been carried out in the province of Malaga. The study was made taking the data obtained during the last years in several localities of the province: Malaga (1992-1999), Estepona (1995-1997), Antequera (1998-1999) and Nerja (2000). In general, just between 3 and 6% of the annual total pollen were collected during those three months, the airborne pollen spectrum being represented by 14 pollen types: Eucalyptus, Castanea, Parkinsonia, Cannabis, Apiaceae, Ligustrum,Chenopodiaceae-Amaranthaceae, Palmae, Compositae, Artemisia,Typha, Cyperaceae, Poaceae y Urticaceae. During the period studied, the pollen types that reached highest concentrations were Eucalyptus, Chenopodiaceae-Amaranthaceae and Poaceae while the rest of the cited taxa were detected at very low concentrations. Some taxa present higher concentrations at determined sampling stations: Costana(' and Compositae in Antequera, Palmae and Parkin.s. onia in Malaga, and Artemisia in Ncrja. The evolution along the summer season shows, in general, two trends. The first one, in which the pollen concentrations are decreasing from July to August, is present in all the taxa and localities studied, except in Artemisia and Palmae. The other one, in which the pollen concentrations lightly increase from August to September, is present in the former two pollen types but also in Chenopodiaceae- Amarantliaceae and Compositae. Most of the pollen types studied reach their maximum daily peaks in spring (season in which the pollen concentrations are highest in southern Europe) except Eucalyptus, Castanea, Parkinsonia and Cannabis, that generally presented them in summer. These taxa reached notable maximum daily concentrations values: Eucalyptus in 1994 (112 grains/m 3), Castanea in 1997 (233 grains/ in3), Cannabis in 1998 (28 grains/m 3).Key words. Aerobiology, pollen, summer, tourism, allergy, Malaga, southern Spain.

Seasonal pollen distribution in the atmosphere of Hobart, Tasmania: preliminary observations and congruence with flowering phenology

2010 ◽  
Vol 58 (6) ◽  
pp. 440 ◽  
Author(s):  
D. Y. P. Tng ◽  
F. Hopf ◽  
S. G. Haberle ◽  
D. M. J. S. Bowman
Keyword(s):  
Native Plants ◽  
Airborne Pollen ◽  
Flowering Phenology ◽  
Sampling Location ◽  
Minor Role ◽  
Sampling Effort ◽  
Pollen Load ◽  
Flowering Duration ◽  
Pollen Types ◽  
Atmospheric Pollen

The atmospheric pollen loads of Hobart, Tasmania, Australia, were monitored between September 2007 and July 2009. To examine the match of the airborne pollen composition with the flowering duration of their contributing plants, the phenology of native and non-native plants in various habitats near the pollen-trapping site was undertaken between August 2008 and July 2009. The pollen load was found to have a strong seasonal component associated with the start of spring in September. This is incongruent with the peak flowering season of the total taxa in October. In most taxa, atmospheric pollen signatures appeared before flowering was observed in the field. The presence of most pollen types in the atmosphere also exceeded the observed flowering duration of potential pollen-source taxa. Reasons for this may be related to the sampling effort of phenological monitoring, pollen blown in from earlier flowering populations outside of the sampling area, the ability of pollen to be reworked, and the large pollen production of some wind-pollinated taxa. In 2007–2008, 15 pollen types dominated the atmosphere, accounting for 90% of the airborne pollen load. The top six pollen types belonged to Betula, Cupressaceae, Myrtaceae, Salix, Poaceae and Ulmus. Comparatively, the annual pollen load of Hobart is lower than in most other Australian cities; however, the pollen signal of Betula is inordinately high. Native plants play a minor role as pollen contributors, despite the proximity of native habitats to the pollen-sampling location. The implications of the aerobiological observations are discussed in relation to public health.

Comparative Study of Airborne Pollen from the Northern to the Southern of Tunisia

2019 ◽  
pp. 1-8 ◽  
Author(s):  
S. Hadj Hamda ◽  
A. Ben Dhiab ◽  
M. Msallem ◽  
A. Larbi
Keyword(s):  
Crop Production ◽  
Airborne Pollen ◽  
Flowering Phenology ◽  
Plant Distribution ◽  
The South ◽  
Pollen Type ◽  
The North ◽  
Flowering Season ◽  
Pollen Types ◽  
Study Sites

Aerobiology is a multidisciplinary science dealing with biological particles in the atmosphere generated by natural activities during flowering season. Airborne pollen is now the main studied biological structure which is used as a reliable tool to study plant phenology, plant distribution changes and prediction of crop production. The main aims of this work is to determine the distribution of the different spring flowering species from the North to the South of Tunisia and to establish the pollen spectrum of three regions Mornag (North), Menzel M’hiri (Centre) and Chaal (South) in 2017. Airborne pollen data were collected using three volumetric Hirst-type spore traps placed in Mornag (36°39N; 10°16E), Menzel M’hiri (35°38N; 10°41E) and Chaal (34°34N; 10°19E) during olive flowering season. The highest pollen index was recorded in the north (Mornag, 6487.1) corresponding mainly to 18 different pollen types emitted by anemophilous species with an important presence of Cupressus pollen type having the highest contribution. Lower pollen amounts were recorded in Menzel M’hiri (5983.8) and Chaal (925.3). Olea eurpoeae was the most presented pollen type in these regions. However comparing the different study sites we can note a large distribution of some taxa from north to the south. The main common taxa were Olea europaea, Cupressaceae, Poaceae and Amaranhaceae. Their atmospheric concentrations varied also between the regions. Individual pollen index showed a sharp heterogeneity between the taxa in the same region in one hand and between the study sites in the other hand, thus a statistical analysis was performed to define the main group of taxa according to their individual pollen index. Flowering phenology of the main common taxa was also established.

scholarly journals Near-surface and columnar measurements with a micro pulse lidar of atmospheric pollen in Barcelona, Spain

2016 ◽  
Vol 16 (11) ◽  
pp. 6805-6821 ◽  
Author(s):  
Michaël Sicard ◽  
Rebeca Izquierdo ◽  
Marta Alarcón ◽  
Jordina Belmonte ◽  
Adolfo Comerón ◽  
...  
Keyword(s):  
Airborne Pollen ◽  
Correlation Coefficients ◽  
Vertical Motion ◽  
Surface Concentration ◽  
Correlation Study ◽  
Near Surface ◽  
Pollen Types ◽  
Pollen Concentrations ◽  
Micro Pulse Lidar ◽  
Depolarization Ratios

Abstract. We present for the first time continuous hourly measurements of pollen near-surface concentration and lidar-derived profiles of particle backscatter coefficients and of volume and particle depolarization ratios during a 5-day pollination event observed in Barcelona, Spain, between 27 and 31 March 2015. Daily average concentrations ranged from 1082 to 2830 pollen m−3. Platanus and Pinus pollen types represented together more than 80 % of the total pollen. Maximum hourly pollen concentrations of 4700 and 1200 m−3 were found for Platanus and Pinus, respectively. Every day a clear diurnal cycle caused by the vertical transport of the airborne pollen was visible on the lidar-derived profiles with maxima usually reached between 12:00 and 15:00 UT. A method based on the lidar polarization capabilities was used to retrieve the contribution of the pollen to the total aerosol optical depth (AOD). On average the diurnal (09:00–17:00 UT) pollen AOD was 0.05, which represented 29 % of the total AOD. Maximum values of the pollen AOD and its contribution to the total AOD reached 0.12 and 78 %, respectively. The diurnal means of the volume and particle depolarization ratios in the pollen plume were 0.08 and 0.14, with hourly maxima of 0.18 and 0.33, respectively. The diurnal mean of the height of the pollen plume was found at 1.24 km with maxima varying in the range of 1.47–1.78 km. A correlation study is performed (1) between the depolarization ratios and the pollen near-surface concentration to evaluate the ability of the former parameter to monitor pollen release and (2) between the depolarization ratios as well as pollen AOD and surface downward solar fluxes, which cause the atmospheric turbulences responsible for the particle vertical motion, to examine the dependency of the depolarization ratios and the pollen AOD upon solar fluxes. For the volume depolarization ratio the first correlation study yields to correlation coefficients ranging 0.00–0.81 and the second to correlation coefficients ranging 0.49–0.86.

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

2021 ◽  
pp. 93-109
Author(s):  
Ejlal Sanad Mohammed Motwaly ◽  
A.G. Elfadil ◽  
Ahmed Mudawi Musa
Keyword(s):  
Relative Humidity ◽  
Meteorological Parameters ◽  
Airborne Pollen ◽  
Maximum Temperature ◽  
Pollen Concentration ◽  
Spore Trap ◽  
Pollen Concentrations ◽  
The Relationship ◽  
Metrological Parameters ◽  
Airborne Pollen Concentration

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.

Influence of Saharan-Sahel dust outbreaks on pollen exposure in the Iberian Mediterranean areas

2021 ◽  
Author(s):  
Jesús Rojo ◽  
José María Moreno ◽  
Jorge Romero-Morte ◽  
Beatriz Lara ◽  
Belén Elvira-Rendueles ◽  
...  
Keyword(s):  
Iberian Peninsula ◽  
Mineral Dust ◽  
Airborne Pollen ◽  
Potential Effect ◽  
Dust Particles ◽  
Simultaneous Occurrence ◽  
Air Mass ◽  
Pollen Types ◽  
Pollen Concentrations ◽  
Pollen Exposure

<p>Airborne particulate matter such as mineral dust comes mainly from natural sources, and the arid regions of Sahara and Sahel in Africa release large amounts of the aerosols dispersed worldwide. There is evidence of concomitant presence of desert dust particles and bioaerosols such as pollen grains in the atmosphere, which produce a significant decline in air quality during the dust intrusions events. However, there is little knowledge about the influence of dust episodes on pollen exposure in allergy sufferers as well as the causes that may produce a potential effect of the intrusions on airborne pollen levels. This potential effect on the airborne pollen concentrations is analysed in the Iberian Mediterranean region in this study. Mediterranean countries are strongly affected by Saharan-Sahel dust intrusions, and the Iberian territory, specially the central and southern areas, suffer frequently great incidence of dust episodes due to its geographic location. In this study firstly, the simultaneous occurrence between airborne pollen peaks and Saharan-Sahel dust intrusions were analysed and compared with the behaviour in the days before and after the dust intrusions in the central and south-eastern Iberian Peninsula. Secondly, the weather conditions favouring high pollen concentrations during dust episodes namely prevalent winds, air mass pathways and variations in other meteorological variables like air temperature, relative humidity or atmospheric pressure were studied.</p><p>Pollen peaks often coincided with dust episodes during the pollen season in the central Iberian Peninsula. The increase of the airborne pollen concentrations during the dust episodes is clear in inland Iberian areas, although this was not the case in coastal areas of the southeast where pollen concentrations could even be seen to decrease when easterly winds from the sea prevailed during dust intrusions. Total pollen concentrations and also pollen types such as Olea, Poaceae and Quercus showed an increase in the central Iberian Peninsula during the dust episodes when two meteorological phenomena occurred simultaneously: 1) prevailing winds came from large areas of the main wind-pollinated pollen sources at medium or short scale (mainly from western and southwestern areas); and 2) optimal meteorological conditions that favoured pollen release and dispersal into the atmosphere (mainly high temperatures and low humidity). Both these conditions often occur during Saharan-Sahel dust intrusions in the centre. The findings suggest that the proportion of long-range transport is lower than those produced in medium and short distance by dust intrusions of air masses. Therefore, maximum pollen peaks are most likely to occur during dust episodes in the central Iberian Peninsula dramatically increasing the risk of outbreaks of pollinosis and other respiratory diseases in the population. The negative effects of the mineral dust on public health are well known, even more so when allergenic biological agents are co-transported together by the air mass movements coming from desert areas. The findings of this study have very relevant implications for defining health-emergency alerts for severe Saharan-Sahel dust outbreaks.</p>

Thirty-Year Survey on Airborne Pollen Concentrations in Genoa, Italy: Relationship with Sensitizations, Meteorological Data, and Air Pollution

2011 ◽  
Vol 25 (6) ◽  
pp. e232-e241 ◽  
Author(s):  
Arsenio Corrado Negrini ◽  
Simone Negrini ◽  
Vania Giunta ◽  
Silvana Quaglini ◽  
Giorgio Ciprandi
Keyword(s):  
Air Pollution ◽  
Pollen Season ◽  
Meteorological Parameters ◽  
Airborne Pollen ◽  
Meteorological Data ◽  
Pollen Allergy ◽  
Pollen Species ◽  
Pollen Concentrations ◽  
Large Populations ◽  
Pollen Release

Background Pollen allergy represents a relevant health issue. Betulaceae sensitization significantly increased in Genoa, Italy, in the last decades. This study investigated possible relationships among pollen count, meteorological changes, air pollution, and sensitizations in this city during a 30-year period. Methods Betulaceae, Urticaceae, Gramineae, and Oleaceae pollen counts were measured from 1981 to 2010 in Genoa. Sensitization to these pollens was also considered in large populations of allergic patients. Meteorological parameters and pollutants were also measured in the same area. Results Betulaceae sensitization increased over time. All pollen species significantly increased over this time. Pollen season advanced for Betulaceae and Urticaceae. Only Urticaceae season significantly increased. Temperature increased while rainfall decreased over the time. Pollutants significantly decreased. There were some relationships between pollen changes and climatic and air pollution parameters. Conclusion This 30-year study conducted in an urbanized area provided evidence that Betulaceae sensitization significantly increased, pollen load significantly augmented, and climate and air pollution changed with a possible influence on pollen release.

scholarly journals Land-Use and Height of Pollen Sampling Affect Pollen Exposure in Munich, Germany

Atmosphere ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 145 ◽  
Author(s):  
Jesús Rojo ◽  
Jose Oteros ◽  
Antonio Picornell ◽  
Franziska Ruëff ◽  
Barbora Werchan ◽  
...  
Keyword(s):  
Airborne Pollen ◽  
Pollen Grains ◽  
Ground Level ◽  
Large Area ◽  
Dispersal Capacity ◽  
Pollen Types ◽  
Pollen Concentrations ◽  
Pollen Sources ◽  
Poaceae Pollen ◽  
The City

Airborne pollen concentrations vary depending on the location of the pollen trap with respect to the pollen sources. Two Hirst-type pollen traps were analyzed within the city of Munich (Germany): one trap was located 2 m above ground level (AGL) and the other one at rooftop (35 m AGL), 4.2 km apart. In general, 1.4 ± 0.5 times higher pollen amounts were measured by the trap located at ground level, but this effect was less than expected considering the height difference between the traps. Pollen from woody trees such as Alnus, Betula, Corylus, Fraxinus, Picea, Pinus and Quercus showed a good agreement between the traps in terms of timing and intensity. Similar amounts of pollen were recorded in the two traps when pollen sources were more abundant outside of the city. In contrast, pollen concentrations from Cupressaceae/Taxaceae, Carpinus and Tilia were influenced by nearby pollen sources. The representativeness of both traps for herbaceous pollen depended on the dispersal capacity of the pollen grains, and in the case of Poaceae pollen, nearby pollen sources may influence the pollen content in the air. The timing of the pollen season was similar for both sites; however, the season for some pollen types ended later at ground level probably due to resuspension processes that would favor recirculation of pollen closer to ground level. We believe measurements from the higher station provides a picture of background pollen levels representative of a large area, to which local sources add additional and more variable pollen amounts.

scholarly journals EVALUATION OF METEOROLOGICAL PARAMETERS INFLUENCE UPON POLLEN SPREAD IN THE ATMOSPHERE / METEOROLOGINIŲ PARAMETRŲ ĮTAKOS ŽIEDADULKIŲ SKLAIDAI ATMOSFEROJE ĮVERTINIMAS / ОЦЕНКА ВЛИЯНИЯ МЕТЕОРОЛОГИЧЕСКИХ ПАРАМЕТРО ВН АДИСПЕРСИЮ ПЫЛЬЦЫВ АТМОСФЕРЕ

2011 ◽  
Vol 19 (1) ◽  
pp. 5-11 ◽  
Author(s):  
Laura Veriankaitė ◽  
Ingrida Šaulienė ◽  
Arūnas Bukantis
Keyword(s):  
Air Temperature ◽  
Meteorological Parameters ◽  
Airborne Pollen ◽  
Rank Correlation ◽  
Correlation Method ◽  
Pollen Concentration ◽  
Spearman’S Rank Correlation ◽  
Rank Correlation Method ◽  
Pollen Types ◽  
Complex Influence

The elements determining the meteorological conditions are the main parameters in processes of airborne pollen modeling. In modern research the influence of different meteorological element or their complex is analyzed basing upon the statistic methods or using dispersion models in which the possible influence of meteorological parameters upon airborne pollen is described in equations. The correlation of meteorological indicators and pollen concentration in the atmosphere fixed in Klaipėda Aerobiological Station is analyzed in this article. The coefficients of correlation of meteorological parameters and pollen concentration are calculated basing upon the Spearman's rank correlation method. The analysis of various factors was used for determining the complex influence of meteorological parameters upon the pollen concentration in the air. After evaluation of influence of meteorological parameters as separate factors one has determined that more than a half of analyzed pollen types showed statistically reliable (p < 0.05) correlation of pollen amount in the air and relative air humidity (89%), air temperature (74%) and amount of precipitation (52%). The investigation results showed that 37% of pollen amount of indicated plants genera and families in the atmosphere was determined by wind velocity. After evaluation of complex influence of meteorological factors on the concentration of pollen spread in the air one has determined that relative humidity and/or air temperature are one of the most significant environmental factors determining the amount of pollen in the atmosphere during the vegetation. Their influence was determined for all the three cases under study. Santrauka Meteorologines sąlygas nusakantys elementai yra pagrindiniai parametrai modeliuojant žiedadulkių sklaidą. Nūdienos moksliniuose tyrimuose tam tikro meteorologinio elemento ar jų komplekso poveikis analizuojamas statistiniais metodaisarba taikant sklaidos modelius, kuriuose pagrindinėmis lygtimis aprašoma galima meteorologinių parametrų įtaka žiedadulkių sklaidai. Straipsnyje analizuojama meteorologinių rodiklių sąsajos su Klaipėdos aerobiologinėje stotyje fiksuota žiedadulkių koncentracija ore. Meteorologinių parametrų ir žiedadulkių koncentracijų koreliacijos koeficientai apskaičiuoti Spearman ranginės koreliacijos metodu. Tiriant kompleksinę meteorologinių parametrų įtaką žiedadulkių koncentracijai ore, išanalizuota įvairūs veiksniai. Atskirai įvertinus įvairių meteorologinių parametrų įtaką, nustatyta statistiškai patikima (p < 0,05) daugiau nei pusės analizuotų žiedadulkių tipų žiedadulkių kiekio ore ir santykinės oro drėgmės (89 %), oro temperatūros (74 %) ir kritulių kiekio (52 %) sąsaja. Tyrimo rezultatai rodė, kad vėjo greitis turi įtakos 37 % identifikuotų augalų genčių ir šeimų žiedadulkių kiekiui ore. Įvertinus kompleksinę meteorologinių veiksnių įtaką oru sklindančių žiedadulkių koncentracijai, nustatyta, kad santykinis drvgnumas ir/arba oro temperatūra yra vieni reikšmingiausių aplinkos veiksnių, lemiančių žiedadulkių kiekį atmosferoje vegetacijos metu. Резюме Элементы, описывающие метеорологические условия, являются основными параметрами в процессах моделирования дисперсии пыльцы. В современных исследованиях воздействие каждого метеорологического элемента илиих комплекса анализируется с помощью статистических методов и моделей распространения, в которых фундаментальными уравнениями описываются возможные эффекты воздействия метеорологических параметровна распространение пыльцы. Статья посвящена анализу соотношения метеорологических величин с концентрацией пыльцы, зафиксированной на аэробиологической станции Клайпеды. Коэффициенты корреляции междуметеорологическими параметрами и концентрацией пыльцы вычислены на основе метода ранговой корреляцииСпирмена. Анализ различных факторов был использован для определения комплексного влияния метеорологических параметров на концентрации пыльцы в воздухе. Оценка метеорологических параметров как отдельныхфакторов показала, что более половины анализируемых типов пыльцы свидетельствует о статистически значимой(р < 0,05) связи между пыльцой в воздухе и относительной влажностью (89%), температурой воздуха (74%) иосадками (52%). Результаты исследования показали, что скорость ветра оказывает влияние на количество ватмосфере 37% определенных семейств и родов пыльцы. Оценка комплексного влияния метеорологическихфакторов на концентрацию пыльцы в воздухе показала, что относительная влажность воздуха и(или) температуравоздуха являются одними из наиболее важных экологических факторов, определяющих количество пыльцы ватмосфере в течение вегетационного периода. Их влияние выявлено вo всех изученных случаях.

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