Concentration characteristics of culturable airborne microbes in family homes in Hangzhou, China

IF 2.2 3区环境科学与生态学 Q2 BIOLOGY

Aerobiologia Pub Date : 2023-01-31 DOI:10.1007/s10453-023-09779-6

Xiuyu Lou, Qing Yang, Junting Xie, Zhiguo Fang

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Abstract

This study assessed the concentration characteristics of culturable airborne microbes in 60 family homes with children aged 1–15 years in Hangzhou, southeast China. The concentration of culturable airborne microbes ranged from 314 colony-forming units (CFU)/m³ to 2903 CFU/m³, with a mean value of 873 CFU/m³. The mean fungal concentration (653 CFU/m³) was significantly higher than the mean bacterial concentration of the atmosphere (220 CFU/m³), and the proportion of airborne fungi (73.9%) was significantly higher than that of airborne bacteria (26.1%). Microbial concentrations in family homes with a male child were significantly higher than those in homes with a female child, and there was a negative correlation between microbial concentration and living area per capita in family homes. The mean microbial concentration was highest in summer, followed by spring and autumn, and lowest in winter. This study provides an exposure database of airborne microbes in family homes in southeast China, suggesting that child gender and human occupancy in family homes significantly influence the microbial concentration in the air.

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杭州市家庭空气中可培养微生物的浓度特征

本研究评估了中国东南部杭州市60个有1-15岁儿童的家庭中可培养空气中微生物的浓度特征。可培养的空气中微生物的浓度范围为314个菌落形成单位（CFU）/m3至2903个CFU/m3，平均值为873个CFU/m3。平均真菌浓度（653 CFU/m3）显著高于大气中的平均细菌浓度（220 CFU/m3），空气中真菌的比例（73.9%）显著高于空气中细菌的比例（26.1%），微生物浓度与家庭人均居住面积呈负相关。平均微生物浓度在夏季最高，其次是春季和秋季，冬季最低。这项研究提供了一个中国东南部家庭空气中微生物暴露数据库，表明儿童性别和人类在家庭中的居住对空气中微生物浓度有显著影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aerobiologia 环境科学-环境科学

CiteScore

4.50

自引率

15.00%

发文量

审稿时长

18-36 weeks

期刊介绍： Associated with the International Association for Aerobiology, Aerobiologia is an international medium for original research and review articles in the interdisciplinary fields of aerobiology and interaction of human, plant and animal systems on the biosphere. Coverage includes bioaerosols, transport mechanisms, biometeorology, climatology, air-sea interaction, land-surface/atmosphere interaction, biological pollution, biological input to global change, microbiology, aeromycology, aeropalynology, arthropod dispersal and environmental policy. Emphasis is placed on respiratory allergology, plant pathology, pest management, biological weathering and biodeterioration, indoor air quality, air-conditioning technology, industrial aerobiology and more. Aerobiologia serves aerobiologists, and other professionals in medicine, public health, industrial and environmental hygiene, biological sciences, agriculture, atmospheric physics, botany, environmental science and cultural heritage.