用户名: 密码: 验证码:
Viable fungi in the air of indoor environments of the National Archive of the Republic of Cuba
详细信息    查看全文
文摘
The aim of this study was to analyze the viable fungi in the air of indoor environments of the National Archive of the Republic of Cuba (NARC). The samples were taken in fifteen areas (five points for the three floors) at 2 days (rainy and dry seasons) using a biocolector SAS in 3 h: 10:00 a.m., 1:00 p.m. and 4:00 p.m. The fungal concentration was indicated as colony forming units per cubic meter of air (cfu/m3 of air). It was concluded that indoor air of the NARC was not polluted due to the average fungal concentration that was obtained (59 and 327 cfu/m3 of air in rainy and dry seasons, respectively). In front of the electric transformers, the fungal concentration was significantly higher than those obtained along the corridors of the lower-ground floor. A trend to the increasing of fungal concentration was observed: when the floors were increased, in dry season was higher than rainy season, where also there was biggest fungal diversity. Among the fungal genera isolated, Aspergillus had the highest relative frequency of appearance, and in dry season, it was isolated Actinobacillus sp. (Actinomycetes). Six fungal species were isolated in both samplings: Aspergillus alliaceus, Aspergillus niger, Cladosporium cladosporioides, Fusarium oxysporum, Penicillium chrysogenum and Mucor racemosus. All of fungal species isolated have high biodeteriogenic capacity, and the 61 % showed pathogenic attributes.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700