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The influence of meteorological factors on the hazel (Corylus L.) pollen concentration in Sosnowiec in the years 1997-2007

100%

Dabrowska-Zapart K.

Acta Agrobotanica

|

2008

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tom 61

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nr 2

An analysis of hazel pollen seasons in Sosnowiec was presented on the basis of data from the years 1997–2007. The research was conducted by means of the volumetric method using a Burkard-type spore trap. The duration of pollen seasons was determined by means of the 98% method. The research demonstrated statistically significant correlations between the average, maximum and minimum temperature, relative humidity as well as the number of days with sub-zero temperature and the beginning of the hazel pollen season. It was demonstrated that the duration of the pollen season depended on air relative humidity, insolation and precipitation during the season and the annual sum depended on the weather conditions of the year preceding pollen production and also the weather conditions two years earlier. Significant correlations were also found between weather conditions and the daily concentration of pollen grains. The daily concentration decreased when relative humidity was high and increased with high insolation and air temperature.

2

Aeropalynological calendar for Moscow 1994

100%

Severova E., Polevova S.

Annals of Agricultural and Environmental Medicine

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1996

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tom 03

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nr 2

3

Prediction of airborne Alnus pollen concentration by using ARIMA models

100%

Rodriguez-Rajo F. J., Valencia-Barrera R. M., Vega-Maray A. M., Suarez F. J., Fernandez-Gonzales D., Jato V.

Annals of Agricultural and Environmental Medicine

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2006

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tom 13

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nr 1

To take preventative measures to protect allergic people from the severity of the pollen season, one of aerobiology’s objectives is to develop statistical models enabling the short- and long-term prediction of atmospheric pollen concentrations. During recent years some attempts have been made to apply Time Series analysis, frequently used in biomedical studies and atmospheric contamination to pollen series. The aim of this study is to understand the behaviour of atmospheric alder pollen concentrations in northwest Spain in order to develop predictive models of pollen concentrations by using Time Series analysis. The prediction line proposed for Oviedo and Ponferrada are similar (Arima 2,0,1) while in Vigo a more accurate model founded by Arima (3,0,1) and in León (1,0,1) was used. The results suggest that Ponferrada and Oviedo are the cities in northwest Spain where Alnus pollen allergic individuals should to take preventive measures to protect themselves from the severity of the pollen season. Alnus pollen values higher than 30 grains/m3, a quantity considered sufficient to trigger severe allergy symptoms of other trees of the Betulaceae family, could be reached during 25 days in some years. The predicted lines conformed with the observed values overall in the case of León and Ponferrada. Time Series regression models are especially suitable in allergology for evaluating short-term effects of time-varying pollen appearance in the atmosphere.

4

Meteorological factors and airborne Rumex L. pollen concentration in Lublin

84%

Piotrowska K.

Acta Agrobotanica

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2012

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tom 65

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nr 1

The aim of the present study was to analyse the Rumex pollen season dynamics in Lublin in 2001-2010 and to find relationships between season parameters and meteorological conditions. This study was carried out by the volumetric method using a Lanzoni VPPS 2000 trap. The start and end dates of each season were determined based on the 98% method. The effects of meteorological factors on the Rumex pollen seasons were analysed by employing Spearman’s correlation test. On average, the sorrel pollen season started on 13 May (±7 days), ended on 7 September (±6 days), and lasted nearly four months (±9 days). The highest pollen concentrations were recorded in June and July. A significantly negative correlation was found between season duration and Seasonal Pollen Index (SPI). During shorter pollen seasons, higher pollen counts were recorded. In all study years, the seasons were right-skewed. The pollen concentration was most strongly correlated with humidity and mean air temperature. The season parameters (onset, end, peak date, peak value, SPI value) were primarily dependent on air temperature before and during the pollen season.

5

Airborne pollen of Olea in five regions of Portugal

84%

Ribeiro H., Cunha M., Abreu I.

Annals of Agricultural and Environmental Medicine

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2005

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tom 12

|

nr 2

317-320

The aim of this work was to study spatial and temporal distribution of Olea europeae airborne pollen in different Portuguese regions: Reguengos de Monsaraz (south); Bairrada (west); Braga (northwest); Valenca do Douro and Foz Coa (north-east). Airborne pollen sampling was conducted from 1998-2003 using "Cour" type samplers located in each region. The main pollen season (MPS) of Olea lasted on average 36 days and occurred from late April until middle-to-end of June. During the studied period, inter-annual variations among and within regions, concerning the total annual pollen counts and the beginning, peak and ending dates of the MPS, were reported. Reguengos de Monsaraz and Bairrada registered the earliest MPS starting date, followed by Valenca do Douro and Foz-Coa, and the latest date was verified in Braga that also had the shortest MPS. Reguengos de Monsaraz presented the longest MPS with the highest differences in the beginning and ending dates, but minimum differences in the dates of the maximum pollen peak. Our results showed an increase in the Olea annual pollen index, from north to south, and from the west to the east regions of the country.

6

Relation between Poaceae pollen concentrations and meteorological factors during 2000-2010 in Timisoara, Romania

84%

Ianovici N.

Acta Agrobotanica

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2015

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tom 68

|

nr 4

This paper presents the results of Poaceae pollen seasons from 2000–2010 in Timisoara, Romania. Airborne Poaceae pollen concentrations was high. An increasing trend in the annual totals was observed. The longest pollen season was recorded in the year 2000. The period in which the Poaceae pollen count exceeded the threshold value of 30 grains/m3 lasted from 9 to 46 days. The present study analyzed the dynamics of pollen seasons in relation to meteorological factors. On the basis of Spearman’s correlation test, the strongest positive correlation was found between the Poaceae pollen counts and temperature; and sunshine hours. Daily average relative humidity, atmospheric pressure and precipitation had a negative effect. A multiple regression analysis was applied to determine how much of the total variance in Poaceae pollen counts can be explained by meteorological parameters. The coefficient of determination ranged from 0.245 to 0.460. Our data illustrate the contrasting effects of temperature, wind, relative humidity and rainfall on the concentration of pollen in the air. The optimum conditions for Poaceae pollen release occur during late spring and early summer. The Poaceae pollen remains one of the major aeroallergens in Timisoara area.

7

Influence of meteorological parameters in hourly patterns of grass [Poaceae] pollen concentrations

84%

Munoz R. A. F., Silva Palacios I., Tormo Molina R.

Annals of Agricultural and Environmental Medicine

|

2010

|

tom 17

|

nr 1

87-100

8

Relationship between airborne ragweed pollen concentration and the macrosynoptic weather types in Budapest, Hungary

84%

Feher Z., Jarai-Komlodi M.

Annals of Agricultural and Environmental Medicine

|

1996

|

tom 03

|

nr 2

9

Airborne allergenic pollen in the atmosphere of the Gdansk-Gdynia area [results for the period 1994-1995]

84%

Latalowa M., Gora M.

Annals of Agricultural and Environmental Medicine

|

1996

|

tom 03

|

nr 2

10

Annual variation of airborne pollen in the city of Vinkovci, Northeastern Croatia

84%

Stefanic E., Rasic S., Merdic S., Colakovic K.

Annals of Agricultural and Environmental Medicine

|

2007

|

tom 14

|

nr 1

Pollen concentration in the atmosphere of Vinkovci (northeastern Croatia) has been analyzed using a Hirst-type volumetric spore trap. During the year 2005, 58 pollen types were recorded with the sum of annual totals of 14,011. The pollen spectrum refl ected the fl oristic diversity of the region. Non-arboreal pollen predominantly contributed to the total pollen sum with a percentage of 81.80%. The main pollen producers characterized by allergenic pollen were: Betula, Quercus, Fraxinus, Populus, Pinus, Urticaceae, Ambrosia, Poaceae, Plantago and Artemisia. Urticaceae was the most frequent and most abundant pollen type accounting for 46.58% of the total annual pollen, followed by Ambrosia (19.66%) and Poaceae (11.01%).

11

Allergenic airborne sporomorphs calendar for Rabka [Southern Poland], 1991-1995

84%

Gawel J., Halota A., Pisiewicz K., Kurzawa R., Radlinski J., Doniec Z.

Annals of Agricultural and Environmental Medicine

|

1996

|

tom 03

|

nr 2

12

Grass pollen [Poaceae] in the air of Sosnowiec [Poland], 1997-2006

84%

Chlopek K.

Acta Agrobotanica

|

2007

|

tom 60

|

nr 2

The article presents the analysis results of the grass pollen seasons from 1997 to 2006 in Sosnowiec. The research was carried out by means of the volumetric method with the use of a Burkard device. The duration of the pollen seasons was determined by means of the 98% method. The influence of meteorological conditions on the starting date and duration of the grass pollen seasons has been estimated in the article. The beginning of the pollen seasons was recorded between 23 April and 23 May. It has been demonstrated that the average duration of the pollen season amounted to 138 days. The period of maximum concentrations was recorded in June and the first half of July. The highest daily concentration was found in 2000 (495 grains in m³) and the highest annual sums in 2002 and 2000. The daily concentration distribution curve has shown three peaks. The highest values were recorded from 7 am until 11 am, from 13 pm until 17 pm and from 19 pm until 21 pm. It has been found that there is a significant influence of weather conditions (temperature, precipitation and relative humidity) on the beginning and duration of the pollen seasons and the period of maximum concentrations.

13

Analysis of airborne pollen concentrations in Zagreb, Croatia, 2002

84%

Peternel R., Culig J., Mitic B., Vukusic I., Sostar Z.

Annals of Agricultural and Environmental Medicine

|

2003

|

tom 10

|

nr 1

Employing the volumetric method by use of a Hirst sampler, a total of 71,286 pollen grains, as many as 94.20% of them allergenic, were recorded in the air samples from the city of Zagreb during the 2002 pollen season. Among identified pollen of 35 plant species/genera/families, 23 were allergenic: Taxus/Juniperus, Alnus sp., Fraxinus sp., Betula sp., Corylus sp., Poaceae, Urticaceae, Artemisia sp., Ambrosia sp., Carpinus sp., Castanea sp., Chenopodiaceae, Salix sp., Populus sp., Ulmus sp., Juglans sp., Quercus sp., Platanus sp., Fagus sp., Plantago sp., Pinus sp., Picea sp. and Abies sp. The pollen of these plants also cause the majority of pollinosis in Europe. Study results and the pollen calendar designed for the 2002 pollen season for the City of Zagreb provide useful data for allergologists to reach an accurate diagnosis. The calendar also provides timely information on airborne pollen types and air concentrations for individuals with pollen hypersensitivity, thus allowing them to adjust their daily activities so as to minimize their contact with allergens and improve their quality of life both at home and at work.

14

Airborne ragweed pollen concentration in North-Eastern Croatia and its relationship with meteorological parameters

84%

Stefanic E., Kovacevic V., Lazanin Z.

Annals of Agricultural and Environmental Medicine

|

2005

|

tom 12

|

nr 1

Airborne ragweed pollen concentration in the north-eastern part of Croatia was investigated in relation to some meteorological factors. Data was obtained for three consecutive years (2001, 2002 and 2003) using volumetric method (Burkard trap). The correlation between the concentration of pollen grains in the atmosphere and maximum, minimum and mean daily temperature, daily temperature range, sunshine hours, relative humidity and precipitation from daily monitoring was studied. The critical ragweed pollen season appears from 33rd to 38th week, with its peak at the beginning of September each year. Statistically significant correlation between the ragweed pollen count and selected meteorological variables were found in some study years, but only a correlation with the mean air temperature and ragweed pollen presence in the air was significant over time.

15

Betula and Populus pollen counts and meteorological conditions in Szczecin, Poland

84%

Puc M., Wolski T.

Annals of Agricultural and Environmental Medicine

|

2002

|

tom 09

|

nr 1

16

Allergen-induced changes in nasal mucosa cytograms in hay fever

84%

Tarchalska-Krynska B., Zawisza E., Rapiejko P.

Annals of Agricultural and Environmental Medicine

|

1996

|

tom 03

|

nr 2

17

Definition of main pollen season using logistic model

84%

Ribeiro H., Cunha M., Abreu I.

Annals of Agricultural and Environmental Medicine

|

2007

|

tom 14

|

nr 2

This paper proposes a method to unify the defi nition of the main pollen season based on statistical analysis. For this, an aerobiological study was carried out in Porto region (Portugal), from 2003-2005 using a 7-day Hirst-type volumetric spore trap. To defi ne the main pollen season, a non-linear logistic regression model was fi tted to the values of the accumulated sum of the daily airborne pollen concentration from several allergological species. An important feature of this method is that the main pollen season will be characterized by the model parameters calculated. These parameters are identifi able aspects of the fl owering phenology, and determine not only the beginning and end of the main pollen season, but are also infl uenced by the meteorological conditions. The results obtained with the proposed methodology were also compared with two of the most used percentage methods. The logistic model fi tted well with the sum of accumulated pollen. The explained variance was always higher than 97%, and the exponential part of the predicted curve was well adjusted to the time when higher atmospheric pollen concentration was sampled. The comparison between the different methods tested showed large divergence in the duration and end dates of the main pollen season of the studied species.

18

Flowering and airborne pollen - a novel statistical approach

84%

Kasprzyk I., Walanus A.

Acta Agrobotanica

|

2007

|

tom 60

|

nr 2

The time pattern of flowering significantly affects the pollen season, its beginning, length and the concentration of pollen grains in air. The forecasting models used in aerobiological studies were chiefly based on the elements of weather conditions; however, recently the phenology of pollen shedding has been taken into consideration in these models more and more frequently. The aim of the presented investigations was to determine to what extent the flowering and the occurrence of allergenic pollen grains in air coincided in time. The investigation was carried out in Rzeszów (SE Poland) in the years 2003-2004. The flowering of 19 allergenic plant species was observed and seven phenophases were distinguished. Aerobiological monitoring was based on the volumetric method. In the case of most herbaceous plants, the flowering period overlapped the pollen season, high concentrations of pollen being recorded throughout several phenophases. In general, the pollen of trees occurred during very short periods, frequently during one phenophase, while the investigated phenomena were missing each other. The most intensive growth of inflorescences of alder, hazel and birch was observed at the beginning of full flowering or towards the end of full flowering.

19

Correlation between conjunctival provocation test results and conjunctival symptoms in pollinosis - preliminary report

84%

Lipiec A., Rapiejko P., Samolinski B., Krzych E.

Annals of Agricultural and Environmental Medicine

|

2005

|

tom 12

|

nr 1

The aim of the study was to investigate the correlation between the level of reactivity in conjunctival provocation test and conjunctival symptoms that develop during the pollination season in grass allergic patients. Conjunctival provocation test with grass pollen allergens was performed in 22 patients suffering from pollinosis. During grass pollination season all patients monitored their symptoms with Symptoms Score Cards. A parallel measurement of the level of grass pollen count was carried out on a daily basis by volumetric method. The mean grass pollen count which triggered the reaction in individual patients depended on the results of conjunctival provocation test. The lowest pollen count level was observed in cases of patients with positive conjunctival provocation test at low allergen extract concentration of 160 and 500 BU/ml, whereas the highest count in cases of 1,600 BU/ml. The difference between the results was found to be statistically significant. A threshold grass pollen concentration for conjunctival symptoms was established at the level of 22 grains/m3. We conclude that the patients with pollinosis and high reactivity in conjunctival provocation test develop conjunctival symptoms earlier during grass pollination season than the patients who are characterised by lower reactivity during conjunctival provocation test.

20

Analysis of Alnus spp. pollen seasons in Lublin and Warszawa [Poland], 2001-2007

84%

Weryszko-Chmielewska E., Rapiejko P.

Acta Agrobotanica

|

2007

|

tom 60

|

nr 2

The course of Alnus spp. pollen seasons was compared in two cities, Lublin and Warsaw, located at a small distance from each other but included in different climatic regions of Poland. The studies were conducted using the volumetric method. It was shown that Alnus pollen seasons started in Warsaw earlier and were much shorter than in Lublin. The span between the start dates of pollen seasons was similar and it was 53-54 days. Peak days occurred in both cities most often in the second decade of March, but in Warsaw they were recorded several days earlier. Maximum concentrations reached higher values in Lublin, whereas annual totals were higher in Warsaw. The number of days with the concentration > 50 pollen grains × m⁻³ per 24 hours was 5-27 days for Warsaw and 10-19 days for Lublin over 7 years of study.

Ograniczanie wyników

The influence of meteorological factors on the hazel (Corylus L.) pollen concentration in Sosnowiec in the years 1997-2007

Aeropalynological calendar for Moscow 1994

Prediction of airborne Alnus pollen concentration by using ARIMA models

Meteorological factors and airborne Rumex L. pollen concentration in Lublin

Airborne pollen of Olea in five regions of Portugal

Relation between Poaceae pollen concentrations and meteorological factors during 2000-2010 in Timisoara, Romania

Influence of meteorological parameters in hourly patterns of grass [Poaceae] pollen concentrations

Relationship between airborne ragweed pollen concentration and the macrosynoptic weather types in Budapest, Hungary

Airborne allergenic pollen in the atmosphere of the Gdansk-Gdynia area [results for the period 1994-1995]

Annual variation of airborne pollen in the city of Vinkovci, Northeastern Croatia

Allergenic airborne sporomorphs calendar for Rabka [Southern Poland], 1991-1995

Grass pollen [Poaceae] in the air of Sosnowiec [Poland], 1997-2006

Analysis of airborne pollen concentrations in Zagreb, Croatia, 2002

Airborne ragweed pollen concentration in North-Eastern Croatia and its relationship with meteorological parameters

Betula and Populus pollen counts and meteorological conditions in Szczecin, Poland

Allergen-induced changes in nasal mucosa cytograms in hay fever

Definition of main pollen season using logistic model

Flowering and airborne pollen - a novel statistical approach

Correlation between conjunctival provocation test results and conjunctival symptoms in pollinosis - preliminary report

Analysis of Alnus spp. pollen seasons in Lublin and Warszawa [Poland], 2001-2007