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RESEARCH ON MONITORING OF THE CHANGE OF URBAN MICROBIOLOGICAL ENVIRONMENT AND EPIDEMIC RISKS OF EMERGING INFECTIOUS DISEASES.

城市微生物环境变化与新发传染病流行风险监测研究。

基本信息

批准号：
09470109
负责人：
TAKANO Takehito
金额：
$ 8.45万
依托单位：
Tokyo Medical and Dental University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1999
项目状态：
已结题

项目摘要

Urban microbiological environment was studied in some public water area and public space among greater Tokyo. The number of total coliforms and presumptive enterobacteriaceae in a urban river showed high level in a middle part of the river. Bacterial flora in the river was examined. The number of bacteria and bacterial flora in the river flowing through variously urbanized areas were considered to be influenced by urban development. Levels of total coliforms and aerobic bacteria in swimming pool water were within the standard. The number of aerobic bacteria, total coliforms and E. coli in recreational water in urban public parks considerably differed with parks. Levels of bacteria and fungi in the air of underground street and subway were demonstrated. The number of bacteria in the air of underground was associated with the number of pedestrian, and was higher than that in the air of subway. Bacterial flora was also investigated. In addition to these microbiological measurement, evaluation of river water quality in urban area, focusing on alkylphenols, was done. The relationship between inhabitants' health status and existence of incinerator including dioxin discharge was also analyzed. From these results, urban microbiological environment as well as chemical environment is considered to be influenced by the various factors in relation to urbanization. To reduce the epidemic risk of emerging and re-emerging infectious diseases, we suggest that monitoring of microbiological environmental indicators including the number of some pathogenic bacteria and bacterial flora are necessary besides present monitoring system, and that provision of precise, timely and simple information from those monitoring results for citizen are needed to be substantial.

在大东京地区的一些公共水域和公共空间进行了城市微生物环境的研究。城市河流中总大肠菌群和肠杆菌科细菌数量在河流中部较高。检查了河流中的细菌植物群。城市发展对流经不同城市化程度地区的河流中细菌和细菌植物群的数量有一定的影响。游泳池水的总大肠菌群及需氧细菌含量均符合标准。需氧菌数、总大肠菌群数和大肠埃希菌数。城市公园娱乐用水中大肠杆菌含量与公园有较大差异。对地下街和地铁空气中细菌和真菌的含量进行了测定。地铁空气中细菌数量与行人数量有关，且高于地铁空气中细菌数量。还调查了细菌植物群。除了这些微生物学的测量，在城市地区的河流水质评价，重点烷基酚，完成。同时分析了焚烧炉的存在和二恶英排放对居民健康的影响。从这些结果来看，城市微生物环境以及化学环境被认为是由与城市化有关的各种因素的影响。为降低新发和再发传染病的流行风险，建议在现有监测系统的基础上，开展包括病原菌和细菌植物群数量在内的微生物环境指标监测，并通过监测结果向公众提供准确、及时、简单的信息。