Comparison of Poaceae pollen counts recorded at sites in Portugal, Spain and the UK

Fernández-Rodríguez, Santiago; Adams‐Groom, Beverley; Palacios, Inmaculada Silva; Caeiro, Elsa; Brandão, Rui; Ferro, R.; Gonzalo-Garijo, Ángela; Smith, Matt; Molina, Rafael Tormo

doi:10.1007/s10453-014-9338-2

Cited by 20 publications

(8 citation statements)

References 41 publications

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“…As such, the sensitization levels reported in distinct surveys are generally correlated with the aeroallergen levels. Based on published data, the correlation between pollen exposure and sensitization rates was demonstrated, which is not the case for the fungi probably due to low sampling numbers [114][115][116][117] .…”

Section: Discussionmentioning

confidence: 99%

Inhalant Allergens in Portugal

Camacho¹

2017

Int Arch Allergy Immunol

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This review aims to present in a simple manner the work performed in Portugal regarding the identification of the most prevalent aeroallergens in the country and the sensitization levels in Portuguese patients. Much of the data was summarized in tables and illustrated on maps, enabling the community of clinicians, researchers, and patient organizations to access the knowledge about the research performed. This study provides an overview about the distribution of aeroallergens in Portugal, signaling regions and critical periods of exposure of the sensitized population. The illustrated data can help the community of allergy specialists to view the temporal and spatial distribution of aeroallergens across the country. In addition, this information can guide clinicians to select the most appropriate allergens for allergy diagnostic testing, treatment, and allergen avoidance.

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Section: Discussionmentioning

confidence: 99%

Inhalant Allergens in Portugal

Camacho¹

2017

Int Arch Allergy Immunol

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“…However, pollen concentrations in the air risky for the health of sensitive individuals were found under non-typical local circumstances (Sofiev et al 2006;Siljamo et al 2013). Local geographical conditions may result in different pollen concentrations of the same plant species in the atmospheres of different countries (Rodríguez et al 2014); therefore, pollen load assessment in a specific territory is required from time to time for the analysis of pollen impact on quality of life. Studies have demonstrated that pollen concentration is increasing, especially in urban regions (Grewling et al 2012;Ziello et al 2012).…”

Section: Introductionmentioning

confidence: 99%

The impact of pollen load on quality of life: a questionnaire-based study in Lithuania

et al. 2015

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Populations worldwide have been increasingly affected by allergic rhinitis associated with pollen allergens. Alterations in the geographical distribution of pollinating flora resulting from climatic changes and increased production of pollens caused by higher atmospheric CO 2 , have changed the environment in which humans reside. This study, carried out in Lithuania, aimed to demonstrate how people with pollen allergy are affected by symptoms associated with changing pollen loads and to evaluate the resultant changes in human quality of life. This study assessed pollen loads in Lithuania during 2013-2014. Skin prick tests were carried out on 665 individuals aiming to evaluate sensitivity to pollen allergens. Selfreports on symptoms and their impact on quality of life were collected from each study subject. There were 249 to 429 differences in inter-annual peaks of Betula pollen concentrations, while differences of plant pollen concentrations of the other genus/families varied from 1.5 to 92 % on peak days. Positive reactions to pollen allergens were reported in 54 % of the study subjects; 90 % of these subjects had been continuously suffering from moderate-to-severe symptoms of allergic rhinitis. The most frequently reported symptoms were sneezing (99 %), runny nose (98 %) and stuffy nose (97 %). The dominant group of subjects reported symptoms during the entire period of vegetation (7 months). This study demonstrated that people with pollen allergies have attributed symptomassociated worsening of their quality of life to the typical periods of unavoidable exposure and have made only minimal changes in their lifestyle during the season of pollen load.

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“…In addition to birch, several European studies have shown changes over time in pollen season characteristics of i.e. grass (Poaceae) [14], oak ( Quercus ) [15], alder ( Alnus ) [16], and several weed taxa ( Artemisia spp., Rumex spp. and Poaceae and Urticaceae species) [17].…”

Section: Introductionmentioning

confidence: 99%

Pollen Season Trends (1973-2013) in Stockholm Area, Sweden

et al. 2016

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In the present study, the phenological and quantitative changes in the pollen seasons between 1973 and 2013 in the Stockholm region of Sweden were studied for nine types of pollen (hazel, alder, elm, birch, oak, grass, mugwort, willow and pine). Linear regression models were used to estimate the long term trends in duration, start- and end-dates, peak-values and the yearly accumulated pollen sums of the pollen seasons. The pollen seasons of several arboreal plant species (e.g. birch, oak and pine) were found to start significantly earlier today compared to 41 years earlier, and have an earlier peak-date, while the season of other species seemed largely unaffected. However, the long term trends in the end-dates of pollen seasons differed between arboreal and herbaceous species. For herbaceous species (grass and mugwort), a significant change towards later end-dates was observed and the duration of season was found to have increased. A significant trend towards an earlier end-date was found in the majority of the arboreal plant species (i.e. elm, oak, pine and birch), but the length of the season seemed unaffected. A trend towards an increase in yearly concentrations of pollen was observed for several species; however the reasons for this phenomenon cannot be explained unambiguously by the present study design. The trend of increasing yearly mean air temperatures in the Stockholm area may be the reason to changed phenological patterns of pollen seasons.

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Comparison of Poaceae pollen counts recorded at sites in Portugal, Spain and the UK

Cited by 20 publications

References 41 publications

Inhalant Allergens in Portugal

Inhalant Allergens in Portugal

The impact of pollen load on quality of life: a questionnaire-based study in Lithuania

Pollen Season Trends (1973-2013) in Stockholm Area, Sweden

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