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Potential Sources of Airborne Alternaria spp. spores in South-west Spain

Fernández-Rodríguez, S. and Sadyś, Magdalena and Smith, Matt and Tormo-Molina, R. and Skjøth, C. and Maya-Manzano, J.M. and Silva-Palacios, I. and Gonzalo-Garijo, Á. (2015) Potential Sources of Airborne Alternaria spp. spores in South-west Spain. Science of the Total Environment, 533. pp. 165-176. ISSN Print: 0048-9697 Online: 1879-1026

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Abstract

Fungi belonging to the genus of Alternaria are recognised as being significant plant pathogens, and Alternaria allergens are one of themost important causes of respiratory allergic diseases in Europe. This study aims to provide a detailed and original analysis of Alternaria transport dynamics in Badajoz, SW Spain. This was achieved by examining daily mean and hourly observations of airborne Alternaria spores recorded during days with high airborne concentrations of Alternaria spores (N100 s m−3) from 2009 to 2011, as well as four inventory maps of major Alternaria habitats, the overall synoptic weather situation and analysis of air mass transport using Hybrid Single Particle Lagrangian Integrated Trajectory model and geographic information systems. Land use calculated within a radius of 100 km from Badajoz shows that crops and grasslands are potentially the most important local sources of airborne Alternaria spores recorded at the site. The results of back trajectory analysis showthat, during the examined four episodes, the two main directions where Alternaria source areas were located were: (1) SW–W; and (2) NW–NE. Regional scale and long distance transport could therefore supplement the airborne catch recorded at Badajoz with Alternaria conidia originating from sources such as crops and orchards situated in other parts of the Iberian Peninsula.

Item Type: Article
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Originally deposited as National Pollen and Aerobiology Research Unit (NPARU)

Uncontrolled Keywords: aerobiology, alternaria habitats, HYSPLIT, air mass transport, back-trajectory analysis
Subjects: Q Science > Q Science (General)
Divisions: Academic Departments > Institute of Science and the Environment
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Depositing User: Carsten Skjoth
Date Deposited: 14 Jul 2015 08:28
Last Modified: 04 Jan 2017 10:46
URI: https://eprints.worc.ac.uk/id/eprint/3795

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