Characteristics, determinants, and spatial variations of ambient fungal levels in the subtropical Taipei metropolis
Characteristics, determinants, and spatial variations of ambient fungal levels in the subtropical Taipei metropolis
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DOI：
10.1016/j.atmosenv.2006.11.035
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发表时间：
2007-04
影响因子：
5
通讯作者：
Yi-Hua Wu;Chang-Chuan Chan;C. Rao;Chung-te Lee;H. Hsu;Y. Chiu;H. Chao
中科院分区：
文献类型：
--
作者：
Yi-Hua Wu;Chang-Chuan Chan;C. Rao;Chung-te Lee;H. Hsu;Y. Chiu;H. Chao
摘要本研究旨在探讨台北市空气性过敏原之时空分布、组成及影响因素。2003年至2004年，我们对台北市城区新庄市和农村区石门乡的环境可培养真菌进行了监测，地点为大都会。在研究期间，我们在每个月的最后一周收集环境真菌，使用重复的Burkard便携式采样器和麦芽提取物琼脂。在研究期间，空气中真菌的平均浓度为1339菌落形成单位。最常见的真菌是非孢子形成真菌，枝孢属，青霉属，弯孢属和曲霉属在这两个网站。城市空气中真菌浓度和真菌物种多样性普遍高于农村地区。大多数真菌类群有显着的季节变化，在夏季较高的水平。多变量分析表明，环境真菌的水平与温度呈正相关，但与臭氧和其他几种空气污染物呈负相关。相对湿度也有一个显着的非线性关系与环境真菌水平。结果表明，亚热带地区城市和农村环境真菌的浓度和组成存在差异。高环境真菌水平与城市环境以及高温和低臭氧水平的环境条件有关。
This study was conducted to investigate the temporal and spatial distributions, compositions, and determinants of ambient aeroallergens in Taipei, Taiwan, a subtropical metropolis. We monitored ambient culturable fungi in Shin-Jhuang City, an urban area, and Shi-Men Township, a rural area, in Taipei metropolis from 2003 to 2004. We collected ambient fungi in the last week of every month during the study period, using duplicate Burkard portable samplers and Malt Extract Agar. The median concentration of total fungi was 1339 colony-forming unitsm−3of air over the study period. The most prevalent fungi were non-sporulating fungi, Cladosporium, Penicillium, Curvularia and Aspergillus at both sites. Airborne fungal concentrations and diversity of fungal species were generally higher in urban than in rural areas. Most fungal taxa had significant seasonal variations, with higher levels in summer. Multivariate analyses showed that the levels of ambient fungi were associated positively with temperature, but negatively with ozone and several other air pollutants. Relative humidity also had a significant non-linear relationship with ambient fungal levels. We concluded that the concentrations and the compositions of ambient fungi are diverse in urban and rural areas in the subtropical region. High ambient fungal levels were related to an urban environment and environmental conditions of high temperature and low ozone levels.