Next Article in Journal
Aerosols in Northern Morocco (Part 4): Seasonal Chemical Signatures of PM2.5 and PM10
Previous Article in Journal
Concentration Characteristics, Source Analysis, and Health Risk Assessment of Water-Soluble Heavy Metals in PM2.5 During Winter in Taiyuan, China
Previous Article in Special Issue
Combined Exposure to High-Cholesterol Diet and PM2.5: Brain Injury and Regulatory Mechanism of HIF-1α in ApoE−/− Female Mice
 
 
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Toledo and Climate Change: 30 Years of Clinical Aerobiology in the Center of Spain

by
Angel Moral de Gregorio
1,*,
Francisco Feo Brito
2,
Raúl Guzmán Rodríguez
1,
Pedro Beneyto Martin
3 and
Carlos Senent Sánchez
1
1
Allergy Department, Hospital Universitario Toledo, 45007 Toledo, Spain
2
Faculty of Medicine of Ciudad Real, 13071 Ciudad Real, Spain
3
Research Unit, Hospital Universitario Toledo, 45007 Toledo, Spain
*
Author to whom correspondence should be addressed.
Atmosphere 2025, 16(8), 981; https://doi.org/10.3390/atmos16080981 (registering DOI)
Submission received: 21 June 2025 / Revised: 3 August 2025 / Accepted: 13 August 2025 / Published: 18 August 2025
(This article belongs to the Special Issue Characterization and Toxicity of Atmospheric Pollutants)

Abstract

The incidence of allergic diseases has increased notably in recent years. The reasons for this increase include air pollution, diet, and infectious factors. This study aims to analyze the interactions between aeroallergens, environmental pollutants, and meteorological factors and their impact on allergenic sensitization in Toledo, Spain. An aerobiological study was conducted over the past 30 years (1994–2023) using a Burkard collector and the SEAIC (Spanish Society of Allergology and Clinical Immunology) methodology. Meteorological data were obtained from the State Meteorological Agency (AEMET) and pollutant data were acquired from the Castilla-La Mancha Air Quality Monitoring Network. Patients presenting with seasonal allergic symptoms at the University Hospital of Toledo were selected for skin testing with various types of airborne pollen. A total of twenty pollen taxa were identified in the Toledo atmosphere, as follows: Cupressaceae (26.53%); Olea europaea (21.62%); Quercus (21.12%); Poaceae (10.30%); Urticaceae (2.58%); Plantago (2.48%); Platanus (2.00%); Amaranthaceae (1.72%); Rumex (1.68%); and Morus, Pistacia, Populus, Artemisia, Fraxinus, Alnus, Carex, and Ericaceae (less than 1% each). The average temperature increased by 1.2 °C, while the level of precipitation remained stable. Among all pollutants, only a moderate increase in ozone levels was observed; however, the concentrations of particulate matter and nitrogen oxides decreased. The prevalence of pollen sensitization in allergic patients ranged from 8% for Pinus nigra to 84% for Phleum pratense. In conclusion, the rise in temperature due to climate change, coupled with high concentrations of pollutants such as ozone, can result in increased concentrations of the main types of wind-borne pollen. Thus, this can lead to a greater sensitivity to pollen and, consequently, more people becoming allergic to pollen.
Keywords: climate change; pollen; ozone; pollutants; Alternaria; meteorological factors climate change; pollen; ozone; pollutants; Alternaria; meteorological factors

Share and Cite

MDPI and ACS Style

Moral de Gregorio, A.; Feo Brito, F.; Guzmán Rodríguez, R.; Beneyto Martin, P.; Sánchez, C.S. Toledo and Climate Change: 30 Years of Clinical Aerobiology in the Center of Spain. Atmosphere 2025, 16, 981. https://doi.org/10.3390/atmos16080981

AMA Style

Moral de Gregorio A, Feo Brito F, Guzmán Rodríguez R, Beneyto Martin P, Sánchez CS. Toledo and Climate Change: 30 Years of Clinical Aerobiology in the Center of Spain. Atmosphere. 2025; 16(8):981. https://doi.org/10.3390/atmos16080981

Chicago/Turabian Style

Moral de Gregorio, Angel, Francisco Feo Brito, Raúl Guzmán Rodríguez, Pedro Beneyto Martin, and Carlos Senent Sánchez. 2025. "Toledo and Climate Change: 30 Years of Clinical Aerobiology in the Center of Spain" Atmosphere 16, no. 8: 981. https://doi.org/10.3390/atmos16080981

APA Style

Moral de Gregorio, A., Feo Brito, F., Guzmán Rodríguez, R., Beneyto Martin, P., & Sánchez, C. S. (2025). Toledo and Climate Change: 30 Years of Clinical Aerobiology in the Center of Spain. Atmosphere, 16(8), 981. https://doi.org/10.3390/atmos16080981

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop