Conidia of Alternaria in the atmosphere of the city of Cordoba, Spain in relation to meteorological parameters.

摘要

The presence of conidia belonging to different species of the genus Alternaria were analysed in the atmosphere of Cordoba during 1 year (1992) using a Hirst sampler. Spores of Alternaria were present all year, with a clear seasonal pattern which showed 2 peaks, one in spring and the other in autumn. 26 822 conidia/m3 were sampled, which implied a daily mean of 74.3 conidia/m3. Statistical analyses comparing the data with meteorological parameters showed a positive correlation with maximum, minimumand mean temperatures, and a negative correlation with rain. Nevertheless, meteorological parameters seemed to affect the number of conidia differently according to the season of the year. Regression analyses carried out in order to obtain a predictive pattern revealed that the best fit was between the 7-day running mean of the number of conidia and a week's accumulated mean temperature.