1 - Sociedade Portuguesa de Alergologia e Imunologia Clínica – SPAIC
2 - Instituto de Ciências Agrárias e Ambientais Mediterrânicas - ICAAM, Universidade de Évora
3 - Centro de Competência das Ciências da Vida, Universidade da Madeira
4 - Serviço de Imunoalergologia, Área de Pediatria Médica, Hospital D. Estefânia
5 - Unidade de Imunoalergologia, Hospital CUF Descobertas
6 - Centro de Imunoalergologia do Algarve
7 - Departamento de Biologia,Universidade de Évora
- EAACI Congress 2015, 6 a 10 de Junho de 2015, Barcelona, Espanha - Poster com discussão
Aim of study: The atmospheric fungal spores content is of great interest from a clinical point of view, as many species are a trigger for allergic reactions. The main aim of this study is to analyze the airborne fungal spores in Lisbon and the influence of meteorological factors in their concentrations. Methods: For study were used monitoring of fungal spores data of Lisbon Monitoring Station of the Portuguese Aerobiology Network, between 1 January to 31 December of 2013. For monitoring were used a Hirst-type trap, a reading system of the optical microscope based on analysis of a longitudinal line on the center of the sample at a magnification of 400x. The influence of meteorological factors on the concentrations of the various types of fungal spores was performed using the Spearman's correlation. Results: 657.921 fungal spores were recorded. Between 105 identified types presents in the atmosphere of Lisbon, the most abundant were Cladosporium cladosporoide (54%), Amanita (9%), Ustilago (4%), Leptosphaeria (4%) Coprinus (4%) Cladosporium herbarum (4%), Mycospharella (3%), Boletus (2%), Aspergillus-Penicillium (2%), Agaricus (1%) and Alternaria (1%). The highest concentrations were recorded between late spring and autumn, and particularly high in early autumn; the lowest in the winter months. A clear effect of meteorological parameters on the concentrations of spores was observed. The type of influence depended of the type of fungal spore analyzed. In the case of Cladosporium, Alternaria and Ustilago types, a positive effect of the temperature and a negative effect of the relative humidity and precipitation on the atmospheric concentrations of these spores were observed. Conclusion: A higher fungi concentration of fungal spores was found in outdoor air and some species, such as Alternaria that could be implicated in severe asthma exacerbations, were found. The regular fungal spores monitoring will benefit health professionals and patients sensitized to fungi to develop prevention measures and develop future strategies to minimize respiratory pathologies due to fungi exposition.
Palavras-Chave: airborne fungal spores, Lisbon