Influence of inputs from foreign source regions on daily profiles of <i>Olea</i> pollen at an urban site in the southeast of the Iberian Peninsula
The daily cycle of pollen concentrations reflects its genetic response to environmental conditions. The detailed study of these cycles was used to identify the influence of external sources on local pollen levels. In this work, three different daily profiles (Ci) of Olea pollen concentrations were i...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Instituto de Investigación Biomédica y Sanitaria de Alicante (ISABIAL) |
| Repositorio: | r-ISABIAL. Repositorio Institucional de Producción Científica del Instituto de Investigación Biomédica y Sanitaria de Alicante |
| OAI Identifier: | oai:isabial.fundanetsuite.com:p10257 |
| Acceso en línea: | https://isabial.portalinvestigacion.com/publicaciones10257 https://www.sciencedirect.com/science/article/pii/S135223102400253X?via%3Dihub |
| Access Level: | acceso abierto |
| Palabra clave: | Olea pollen Cluster analysis Main pollen season Backward trajectories Bihourly |
| Sumario: | The daily cycle of pollen concentrations reflects its genetic response to environmental conditions. The detailed study of these cycles was used to identify the influence of external sources on local pollen levels. In this work, three different daily profiles (Ci) of Olea pollen concentrations were identified in the city of Alicante (southeastern Spain) using cluster analysis. For this, 2-h data from 2010 to 2015 were used. The percentage frequency, pollen index and mean Olea pollen concentration (in pollen grains center dot m(3)) for each cluster were: C1 (similar to 91%, 8797, 26), C2 (similar to 7%, 4641,179) and C3 (similar to 2%, 1845, 308). C1 was the predominant pattern throughout the whole MPS, while C2 and C3 were only present in the middle of the MPS. Small variations in pollen concentrations throughout the day were observed for C1, while C2 and C3 showed the highest pollen concentration at similar to 04:00 UTC and 10:00 UTC, respectively. C1 represented concentration patterns due to local pollen inputs, being influenced by precipitation events, sea breezes and the recirculation of air pollutants. On the other hand, C2 and C3 were strongly influenced by external pollen inputs from southwestern regions of Spain. The results of this study indicate that external inputs from these regions were associated with exposure of the population to high pollen concentrations for short periods of time. In contrast, inputs from the northwest were associated with exposure to lower pollen concentrations for longer periods of time. |
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