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Influence of environmental drivers on allergy to pollen grains in a case study in Spain (Madrid): meteorological factors, pollutants, and airborne concentration of aeroallergens

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Abstract

The aim of this study was to compare airborne levels of Phl p 1 and Phl p 5, with Poaceae pollen concentrations inside and outside of the pollen season, and to evaluate their association with symptoms in grass allergic patients and the influence of climate and pollution. The Hirst and the Burkard Cyclone samplers were used for pollen and allergen quantification, respectively. The sampling period ran from 23 March 2009 to 27 July 2010. Twenty-three patients with seasonal allergic asthma and rhinitis used an electronic symptom card. The aerosol was extracted and quantified for Phl p 1 and Phl p 5 content. Descriptive statistics, non-parametric paired contrast of Wilcoxon, Spearman’s correlations, and a categorical principal component analysis (CatPCA) were carried out. Significant variations in pollen, aeroallergen levels, pollen allergen potency, and symptoms score were observed in this study. Phl p 5 pollen allergen potency was higher at the beginning of the 2010 grass pollen season. Presence of Phl p 1 outside the pollen season with positive O3 correlation was clinically relevant. 45.5% of the variance was explained by two dimensions in the CatPCA analysis, showing the symptom relationships dissociated in two dimensions. In the first one, the more important relationship was with grass pollen grains concentration and Phl p 5 and to a lesser extent with Phl p 1 and levels of NO2 and O3, and in the second dimension, symptoms were associated with humidity and SO2. Clinically relevant out-season Phl p 1 was found with a positive O3 correlation. The effect of climate and pollution may have contributed to the higher seasonal allergic rhinitis symptom score recorded in 2009.

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Data availability

All data generated or analyzed during this study are included in this published article (and its supplementary information files).

Abbreviations

CatPCA:

Categorical principal component analysis

MPS:

Main pollen season

PAP:

Pollen allergen potency

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Acknowledgements

We thank Maruxa Suárez Cervera, PhD (Department of Botany, Faculty of Pharmacy, University of Barcelona, Spain), and José Ignacio Tudela, Bárbara Cases (Inmunotek S.L.), and María José Narganes (Clínica Subiza) for their valuable help.

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Not applicable.

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Not applicable.

Consent for publication

All authors gave their consent for the manuscript submitted.

Competing interests

The authors declare no competing interests.

Funding

This study was partially funded by the Foundation of the Spanish Society of Allergology and Clinical Immunology.

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Authors and Affiliations

Authors

Contributions

CM, SJ, and SJL: the conception and design of the study; methodology, acquisition of data, and interpretation of data, revising it critically for important intellectual content.

CM: founding acquisition, project administration, and drafting the article.

FCE and MGS: revising the article for important intellectual content and interpretation of the data.

GB: data curation, statistical analysis, and interpretation of data.

All authors approved the final version of the manuscript to be submitted.

Corresponding author

Correspondence to Martha Cabrera.

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Responsible Editor: Lotfi Aleya

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Cabrera, M., Subiza, J., Fernández-Caldas, E. et al. Influence of environmental drivers on allergy to pollen grains in a case study in Spain (Madrid): meteorological factors, pollutants, and airborne concentration of aeroallergens. Environ Sci Pollut Res 28, 53614–53628 (2021). https://doi.org/10.1007/s11356-021-14346-y

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  • DOI: https://doi.org/10.1007/s11356-021-14346-y

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