Comparative study of airborne Alternaria conidia levels in two cities in Castilla-La Mancha (central Spain), and correlations with weather-related variables

Silvia Sabariego 1, Veronica Bouso 2, Rosa Pérez-Badia 2
1 - Area of Botany. Institute of Environmental Sciences, University of Castilla-La Mancha, Toledo, Spain; Deptartment of Plant Biology, Faculty of Biology, Complutense University, Madrid, Spain
2 - Area of Botany. Institute of Environmental Sciences, University of Castilla-La Mancha, Toledo, Spain
Ann Agric Environ Med
2012; 19 (2):
ICID: 1001993
Article type: Original article
Alternaria conidia are among the airborne biological particles known to trigger allergic respiratory diseases. The presented paper reports on a study of seasonal variations in airborne Alternaria conidia concentrations in 2 cities in the central Spanish region of Castilla-La Mancha, Albacete and Toledo. The influence of weather-related variables on airborne conidia levels and distribution was also analysed. Sampling was carried out from 2008-2010 using a Hirst sampler, following the methodology established by the Spanish Aerobiology Network. Annual airborne Alternaria conidia counts were higher in Toledo (annual mean 3,936 conidia) than in Albacete (annual mean 2,268 conidia). Conidia were detected in the air throughout the year, but levels peaked between May-September. Considerable year-on-year variations were recorded both in total annual counts and in seasonal distribution. A significant positive correlation was generally found between mean daily Alternaria counts and both temperature and hours of sunlight, while a significant negative correlation was recorded for relative humidity, daily and cumulative rainfall, and wind speed. Regression models indicated that between 31%-52% of the variation in airborne Alternaria conidia concentrations could be explained by weather-related variables.
PMID 22742792 - click here to show this article in PubMed

Recommend this article to:


Related articles in IndexCopernicus™
     Airborne fungal spores [1 related records]
     Alternaria [34 related records]
     Seasonal variation [43 related records]
     meteorological variables [4 related records]
     Allergy [273 related records]
     Spain [643 related records]
     Albacete [0 related records]
     Toledo [1 related records]


Related articles

J Ek M,  Segura C,
Effect of environmental factor on some litter trai...
ABSTRACT Objective. To determine the effect of environmental factors on litter traits at birth and weaning, and their repeatabilities in four farms in the sub-humid tropics of Mexico. Materials and methods. Data from 46.249 to 5...
Z Obmiński, H Mroczkowska,
Background. The purpose of this study was to: (i) assess changes in anaerobic power, resting levels of blood hormones and the level of psychomotor ability occurring over an annual training cycle in highly-skilled female fencers, and (ii) test ...
S Hashemi, S Madani,
Impact of aging on allergy and mucosal immunity in...
Objectives: Although age-associated alterations on immune system are well described and aging is a subject of different investigations but studies did not discuss about the effect of advanced age on immunity in upper respiratory tract disorders. Ther...