成都市区三个功能区气传真菌的定量研究

QUANTITATIVE STUDY OF AIRBORNE FUNGI AT THREE FUNCTIONAL SECTIONS OF CHENGDU CITY

作者使用液体吸收定量采样法,于1987年在成都市三个功能区进行了一年的气传真菌检测工作。调查表明,成都市区空气中常年飘散着较高浓度的真菌孢子,浓度变化范围为870.37～7592.59个/m^3,高峰在4月和10月。经分离鉴定,气传真菌分属36属和群。其中,酵母、枝孢霉属、青霉属、曲霉属、短梗霉属及无孢菌群为优势气传真菌。对空气中黄曲霉群菌株初筛结果,产毒菌占33.49％。

Airborne fungi are considered as one ofthe important causes of allergies through-out the world. The climatic conditionsof Chengdu are suitable for the breeding ofmolds. we conducted monthly a quantita-tive investigation of the airborne fungi atthree functional sections of Chengdu cityfrom January to December, 1987. The results indicated that the concen-tration of fungal spores in the air was highthrough the year. The range of the concen-trations of the airborne fungi was 870.37-7592.59 spores/m^3, with two peaks inApril and October. The first six dominantairborne fungi were yeast, Cladosporium,Penicillium. Aspergillus, Aureobasidium andNon-sporulating. Of Aspergillus flavus strains detectedby fluorescence of agar medium underultraviolet light 33.49% were aflatoxin-producing. The data show that the climatic andenvironment factors can affect the spreadof airborne fungal spores in the air. Theresults of previous studies and present sur-veys are compared and the offence of air-borne fungi and the significance of thissurvey are also discussed in this paper.