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Pollen calendars and regional gradients as information tools in the Extremadura pollen monitoring network (SW Spain)

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Abstract

Pollen allergies are one of the most important problems among respiratory diseases in today’s society. The creation and development of aerobiological information tools are useful to provide information to patients and doctors. In this work, we analysed the pollen spectrum of Extremadura to generate pollen calendars for Badajoz, Cáceres, Don Benito, Plasencia and Zafra. Additionally, we analysed regional pollen gradients and plotted the main pollen season (MPS) characteristics (start date, peak date, end date and duration) in each city. In Extremadura, 35–40 different types of pollen are frequently identified, the most abundant of which (in decreasing order) belong to Quercus, Poaceae, Olea, Cupressaceae, Platanus, Plantago and Pinus. The dates when the highest accumulation of pollen occurs in the air are from mid-April to the end of May in Badajoz and Cáceres; from mid-March to early June for Don Benito; from mid-April to early June for Plasencia; and from mid-April to 10 June for Zafra. Moreover, it could be confirmed that in the Extremadura region, the start date and the peak date occur earlier in the cities in the south of the region and that the duration of the pollen season is longer in these cities. The differences observed among cities may be due to the varieties of urban species and their management (pruning and irrigation), the influence of peri-urban landscapes, medium- and long-distance pollen transport and climate. The representation and geolocation of pollen calendars obtained using geographic gradients provide information in a simple, fast and visual way and can be of great interest to allergic patients and health professionals.

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Acknowledgements

This work was possible by funds from research projects IB16029 and research group said GR18113 financed by the Regional Government, Junta de Extremadura (Spain) and FEDER. Particularly, the National Commission of Science and Technology of Mexico (CONACyT) funds to A.M.C.

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Authors and Affiliations

  1. Department of Plant Biology, Ecology and Earth Sciences, Faculty of Science, University of Extremadura, Avda. Elvas s/n, Badajoz, Spain

    Raúl Pecero-Casimiro, Rafael Tormo-Molina & Alejandro Monroy-Colín

  2. Center of Allergy and Environment (ZAUM), Member of the German Center for Lung Research (DZL), Technical University and Helmholtz Center Munich, Biedersteiner St., 80802, Munich, Germany

    José María Maya-Manzano

  3. Department of Construction, School of Technology, University of Extremadura, Avda. de la Universidad s/n, Cáceres, Spain

    Santiago Fernández-Rodríguez

  4. Department of Applied Physics, Engineering Agricultural School, University of Extremadura, Avda. Adolfo Suárez s/n, Badajoz, Spain

    Inmaculada Silva-Palacios

  5. Department of Allergology, University Hospital of Badajoz, Avda. Elvas s/n, Badajoz, Spain

    Ángela Gonzalo-Garijo

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  1. Raúl Pecero-Casimiro
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  2. José María Maya-Manzano
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  3. Santiago Fernández-Rodríguez
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Correspondence to Raúl Pecero-Casimiro.

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Pecero-Casimiro, R., Maya-Manzano, J.M., Fernández-Rodríguez, S. et al. Pollen calendars and regional gradients as information tools in the Extremadura pollen monitoring network (SW Spain). Aerobiologia 36, 731–748 (2020). https://doi.org/10.1007/s10453-020-09667-3

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