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The objective of this study was to detect the allergenic fungus Cladosporium in the atmosphere of the Plaza San Martín of Lima (Perú) and to analyze the influence of the meteorological variables on its concentration. Air sampling was performed using a one-stage Andersen type volumetric impact equipment. Cladosporium conidia are present in the atmosphere of Plaza San Martín throughout the study period, however, the highest concentrations were observed in the months of March and September. A positive statistical correlation was found between the concentration of Cladosporium conidia and the wind speed and UV index. The effect of the air temperature showed a weak positive correlation on the concentration of Cladosporium, however, the relative humidity presented a negative correlation. Identification of climatic factors favoring the release of conidia may improve current methods of allergy prevention, early detection of plant infections or respiratory diseases in humans. [ABSTRACT FROM AUTHOR]

An aeromicological study was carried out to establish the influence of meteorological factors on the concentration of total fungal spores in the atmosphere of the Plaza San Martín, Lima, Perú. Sampling was carried out using the volumetric impaction method using an Andersen sampler with Sabouraud agar. The highest concentrations of spores was observed in the months of March and September while the lowest levels were detected in the months of July and August. The predominant fungi that were present throughout the study period were Cladosporium, Penicillium and Aspergillus. These genera comprised 82% of the total isolated spores. The total spore concentration showed a significant statistical correlation (p <0.05) with temperature and UV index while relative humidity presented a negative significant statistical correlation (p <0.05). Wind speed presented a positive statistical correlation with a level of significance of p <0.01. Fluctuations of meteorological conditions showed a marked influence on the distribution of the spores. [ABSTRACT FROM AUTHOR]