scholarly journals Airborne Pollen Records of Shomolu Local Government Area in Lagos State

2014 ◽  
Vol 6 (4) ◽  
pp. 428-432 ◽  
Author(s):  
Tiwalade A. ADENIYI ◽  
Peter A. ADEONIPEKUN ◽  
James D. OLOWOKUDEJO ◽  
Idowu S. AKANDE
Keyword(s):  
Local Government ◽  
Airborne Pollen ◽  
Pollen Grains ◽  
State University ◽  
Current Trends ◽  
Pollen Content ◽  
Lagos State ◽  
Total Pollen ◽  
Pollen Distribution ◽  
The Town

Data on the prevalence of pollen in the atmosphere is limited and almost non-existent for Lagos State and Nigeria. Pollen grains are known to be highly allergenic and thus they are potential causes of respiratory diseases. To investigate airborne incidence of pollen, so as to construct a pollen calendar and contribute to current trends in the development of aeropalynology/allergy study in Nigeria, three highly populated locations in Shomolu Local Government areas of Lagos State: University of Lagos, Bariga and Gbagada, were sampled. Aero-samplers were harvested monthly from January 2013 to December 2013. After acetolysis treatment and analysis, the total pollen count was 4393, belonging to 38 pollen taxa and 29 families. The main taxa include Poaceae, Cyperaceae, Amaranthaceae, Ludwigia and Alchornea. Monthly pollen counts were highest in October and lowest in June. Almost three-quarters of the total pollen content came from grasses and weeds. This composition reflects the ornamental and grassland flora of the town, as well as the natural vegetation surrounding the urban area. The total pollen concentration correlates positively with the temperature and negatively with the wind, rainfall and relative humidity, which was similar in the dominant taxa Amaranthaceae and Alchornea. Dominant taxa Cyperaceae and Ludwigia have significant positive correlation with wheezing cough. Results from this work will form the basis for a forecast service required to inform and educate the general public and allergy sufferers about pollen distribution in Lagos State.

Analysis of airborne pollen fall in Sakarya, Turkey

Biologia ◽  
2006 ◽  
Vol 61 (4) ◽  
Author(s):  
Adem Bicakci
Keyword(s):  
Airborne Pollen ◽  
Pollen Grains ◽  
Arboreal Pollen ◽  
Total Pollen

AbstractIn this study, pollen grains were identified using Durham sampler in the atmosphere of Sakarya in 2000 and 2001. During these two years, a total of 10 805 pollen grains were recorded. A total of 5 386 pollen grains per cm2 were recorded in 2000 and a total of 5 419 pollen grains per cm2 in 2001. Pollen fall in the years 2000–2001 comprised grains belonging to 40 taxa and some unidentified pollen grains. Of these taxa, 22 belonged to arboreal and 18 taxa to non arboreal plants. Total pollen grains consisted of 69.45% grains from arboreal plants, 28.11% grains from non-arboreal plants and 2.44% unidentified pollen grains. In the region investigated, Gramineae, Pinus sp., Quercus sp., Cupressaceae/Taxaceae, Salix sp., Platanus sp., Populus sp., Carpinus sp., Fagus sp., Chenopodiaceae/Amaranthaceae, Xanthium sp., Moraceae, Corylus sp., Fraxinus sp., and Urticaceae released the greatest amount of pollen. The season of maximum pollen fall was from March to May, with a prevalence of arboreal pollen in the first months, and of pollen from non-arboreal plants in the last months of the year.

scholarly journals Data Mining Methods to Detect Airborne Pollen of Spring Flowering Arboreal Taxa

Forests ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1801
Author(s):  
Estefanía González-Fernández ◽  
Sabela Álvarez-López ◽  
Alba Piña-Rey ◽  
María Fernández-González ◽  
Francisco Javier Rodríguez-Rajo
Keyword(s):  
Airborne Pollen ◽  
Meteorological Data ◽  
Pollen Allergy ◽  
Pollen Grains ◽  
Negative Influence ◽  
Positive Influence ◽  
Pollen Types ◽  
Thermal Amplitude ◽  
Total Pollen

Variations in the airborne pollen load are among the current and expected impacts on plant pollination driven by climate change. Due to the potential risk for pollen-allergy sufferers, this study aimed to analyze the trends of the three most abundant spring-tree pollen types, Pinus, Platanus and Quercus, and to evaluate the possible influence of meteorological conditions. An aerobiological study was performed during the 1993–2020 period in the Ourense city (NW Spain) by means of a Hirst-type volumetric sampler. Meteorological data were obtained from the ‘Ourense’ meteorological station of METEOGALICIA. We found statistically significant trends for the Total Pollen in all cases. The positive slope values indicated an increase in pollen grains over the pollen season along the studied years, ranging from an increase of 107 to 442 pollen grains. The resulting C5.0 Decision Trees and Rule-Based Models coincided with the Spearman’s correlations since both statistical analyses showed a strong and positive influence of temperature and sunlight on pollen release and dispersal, as well as a negative influence of rainfall due to washout processes. Specifically, we found that slight rainfall and moderate temperatures promote the presence of Pinus pollen in the atmosphere and a marked effect of the daily thermal amplitude on the presence of high Platanus pollen levels. The percentage of successful predictions of the C5.0 models ranged between 62.23–74.28%. The analysis of long-term datasets of pollen and meteorological information provides valuable models that can be used as an indicator of potential allergy risk in the short term by feeding the obtained models with weather prognostics.

scholarly journals QUANTITATIVE AEROPALYNOLOGY IN THE ATMOSPHERE OF TIMISOARA CITY, ROMANIA

1970 ◽  
Vol 63 ◽  
Author(s):  
Nicoleta Ianovici
Keyword(s):  
Airborne Pollen ◽  
Fungal Spores ◽  
Pollen Grains ◽  
Respiratory Allergy ◽  
Volumetric Method ◽  
Allergenic Pollen ◽  
Deciduous Trees ◽  
Pollen Concentration ◽  
Annual Total ◽  
Total Pollen

Many airborne pollen grains and fungal spores are important biopollutants responsible for human respiratory allergy. In the conditions of România the most important cause of pollinosis is allergenic pollen of some deciduous trees as well as grasses and weeds. The measurements of pollen concentration in the aeroplankton of Timişoara were carried out in 2003 by the volumetric method. The highest concentrations are noted in April and August. A total of 23 types of pollen taxa were recorded in the air of the study area in the 2003-year: Acer, Alnus, Ambrosia, Artemisia, Betula, Carpinus, Chenopodiaceae/Amaranthaceae, Corylus, Fraxinus, Juglans, Morus, Pinaceae, Platanus, Plantago, Populus, Poaceae, Rumex, Salix, Quercus, Taxaceae/Cupressaceae, Tilia, Urtica, Ulmus. The highest values of annual total of pollen grains in a group of trees were reached by Populus and Betula, as well as in a group of grasses and weeds – Ambrosia, Urtica and Poaceae. Trees pollen predominantly contributed to the total pollen sum with a percentage of 53.56%, followed by herbs 37.54% and grasses 8.9%.

Airborne pollen grains in Yalova, Turkey, 2004

Biologia ◽  
2008 ◽  
Vol 63 (5) ◽  
Author(s):  
Mustafa Altunoglu ◽  
Adem Bicakci ◽  
Sevcan Celenk ◽  
Yakup Canitez ◽  
Hulusi Malyer ◽  
...  
Keyword(s):  
Airborne Pollen ◽  
Pollen Grains ◽  
Total Pollen ◽  
Quercus Spp ◽  
Pinus Spp

AbstractIn this study, airborne pollen grains of Yalova province were investigated using VPSS 2000 from January to December 2004. During studying period, a total of 22409 pollen grains/m3 which belonged to 46 taxa and 74 unidentified pollen grains were recorded. From the identified taxa, 26 belong to arboreal and 20 to non-arboreal plants. Total pollen grains consist of 80.50% arboreal, 19.17% non-arboreal plants and 0.33% unidentified pollen grains. In the investigated region, from arboreal plant taxa Platanus spp. (29.08%), Cupressaceae/Taxaceae (21.22%), Pinus spp. (7.34%), Alnus spp. (4.75%), Castanea spp. (3.03%), Quercus spp. (3.07%), Olea spp. (2.50%), Acer spp. (2.21%), Corylus spp. (1.41%) and Fagus spp. (1.15%), and from non-arboreal plant taxa Poaceae (10.01%), Asteraceae (2.86%), Plantago spp. (1.47%) and Artemisia spp. (1.11%) were responsible for the greatest amounts of pollen.

scholarly journals Airborne Pollen Records of Shomolu Local Government Area in Lagos State

2014 ◽  
Vol 6 (4) ◽  
Author(s):  
Tiwalade A. ADENIYI ◽  
Peter A. ADEONIPEKUN ◽  
James D. OLOWOKUDEJO ◽  
Idowu S. AKANDE
Keyword(s):  
Local Government ◽  
Airborne Pollen ◽  
Local Government Area ◽  
Lagos State ◽  
Pollen Records

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.

scholarly journals El polen de Eucalyptus y su incidencia en la atmósfera de Vigo (N.O. España).

2001 ◽  
Vol 26 ◽  
pp. 99-110 ◽  
Author(s):  
F. Javier Rodríguez-Rajo ◽  
Mª Victoria Jato ◽  
Mª Carmen Seijo
Keyword(s):  
Eucalyptus Globulus ◽  
Airborne Pollen ◽  
Correlation Coefficients ◽  
Pollen Grains ◽  
Left Bank ◽  
Ría De Vigo ◽  
Annual Total ◽  
Total Pollen ◽  
High Concentrations ◽  
The City

RESUMEN. El polen de Eucalyptus y su incidencia en la atmósfera de Vigo (N.O. España). Eucalyptus globulus Labill. es la especie arbórea de la familia Myrtaceae, más frecuente en los alrededores de la ciudad de Vigo formando abundantes y densas masas forestales. Aunque su polen se considera moderadamente alergénico, en áreas en las que, como consecuencia de repoblación forestal ocupa extensiones importantes, puede llegar a causar problemas alérgicos.Entre los años 1995 y 2000 se ha realizado el estudio aerobiológico en la ciudad de Vigo mediante un captador LANZONI VPPS 2000 situado en la margen derecha de la ría de Vigo (42°14'15"N, 8°43'30"W). La cantidad de granos de polen anual de Myrtaceae varía ampliamente, alternándose años de concentraciones bajas con otros de valores elevados que representan entre un I y un 3% del polen total anual. El valor más elevado se detectó en 1997 con 1.147 granos de polen. Se encuentra en la atmósfera de Vigo durante todo el año, aunque las concentraciones más importantes se producen generalmente durante los meses de marzo y abril. Asimismo, a lo largo del día los máximos de concentración tienen lugar entre las 15 y las 17 horas. Finalmente se ha realizado un análisis estadístico para poner de manifiesto la posible correlación existente entre las concentraciones de polen y los principales parámetros meteorológicos. El viento procedente del N-NE fue el parámetro con el que se obtuvo correlación positiva y significativa de forma constante, mientras que esta fue negativa con la humedad relativa.Palabras clave. Meteorología, Myrtaceae, Polen, Eucalyptus, Vigo.ABSTRACT. The Eucalyptus pollea and its incidence in the atmosphere of Vigo (N. W. Spain). Eucalyptus globulus Labill. is the most frequent arboreal species of the Myrtaceac family in the surroundings of the city of Vigo, and it constitues abundant and dense forestal masses. Although its pollen can be considered as a moderated allergen, in areas in which Eucalyptus was used in extended reafforestations, it can cause allergenic problems.From 1995 to 2000 a Hirst-type volumetric sampler (Hirst, 1952), LANZONI VPPS 2000 placed in the left bank of the Vigo estuary (42°14'15"N, 8°43'30"W) was used for collecting airborne pollen. From year to year important oscillations in the annual total pollen was observed, alternating years of high concentrations with other of lower values. Eucalyptus pollen counts represent a percentage that vary between I% to 3% of the total pollen, the high quantity being collected in 1997 with 1,147 pollen grains. The Myrtaceae pollen appears in the atmosphere of Vigo all over the year, although the more important concentrations are registered during March and April. Moreover, maximum daily concentrations occur between 17.00 and 18.00 hours. Finally, a statistical analysis has been carried out in order to search for the possible correlations between pollen concentration and the main meteorological parameters. The N-NE wind and relative humidity were the parameters that show the highest correlation coefficients, positive and negative respectively.Key words. Meteorology, Myrtaceae, Pollen, Eucalyptus, Vigo.

scholarly journals Assessment of Salix spp. pollen availability to insects based on aerobiological investigations

2017 ◽  
Vol 70 (2) ◽  
Author(s):  
Elżbieta Weryszko-Chmielewska ◽  
Krystyna Piotrowska-Weryszko ◽  
Aneta Sulborska ◽  
Beata Żuraw ◽  
Marta Dmitruk ◽  
...  
Keyword(s):  
Urban Area ◽  
National Park ◽  
Pollen Season ◽  
Airborne Pollen ◽  
Pollen Grains ◽  
Early Spring ◽  
Pollen Content ◽  
Pollen Seasons ◽  
The Mean ◽  
Salix Spp

Pollen and nectar produced by flowers of species from the genus <em>Salix</em> are an important source of food for various insect groups in early spring. Most willows are entomophilous species; however, substantial amounts of airborne <em>Salix</em> pollen can be noted. The aim of the study was to evaluate the content of pollen of this taxon in the air of Lublin (central-east Poland) in 2001–2016 and to identify the period of its greatest availability to insects. In 2015, we compared the course of the <em>Salix</em> pollen season in Lublin (51°14'37" N; 22°32'25" E) and in the Roztoczański National Park (50°34'57" N; 23°04'24" E), Poland. We found that the date of the pollen season onset fluctuated greatly between March 16 and April 17. The greatest availability of <em>Salix</em> pollen to insects was noted from the end of the first 10-day-period of April to the first 10-day-period of May. The mean annual sum of airborne <em>Salix</em> pollen grains was 833. In Lublin, <em>Salix</em> pollen accounted for ca. 1.25% of the total airborne pollen content of different plant taxa. The investigations have demonstrated a 2-year cycle of <em>Salix</em> pollen abundance. The comparison of the pollen seasons in Lublin and in the Roztoczański National Park indicates that considerably greater amounts of pollen occur in the urban area than in the air of the Roztoczański National Park.

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