| Project/Area Number |
09470109
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Public health/Health science
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| Research Institution | Tokyo Medical and Dental University |
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Principal Investigator |
TAKANO Takehito TOKYO MEDICAL AND DENTAL UNIVERSITY, SCHOOL OF MEDICINE, PROFESSOR, 医学部, 教授 (80126234)
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| Co-Investigator(Kenkyū-buntansha) |
WATANABE Masafumi TOKYO MEDICAL AND DENTAL UNIVERSITY, SCHOOL OF MEDICINE, RESEARCH ASSOCIATE, 医学部, 助手 (90280974)
FUKUDA Yoshiharu TOKYO MEDICAL AND DENTAL UNIVERSITY, SCHOOL OF MEDICINE, RESEARCH ASSOCIATE, 医学部, 助手 (60252029)
NAKAMURA Keiko TOKYO MEDICAL AND DENTAL UNIVERSITY, SCHOOL OF MEDICINE, ASSOCIATE PROFESSOR, 医学部, 助教授 (00211433)
NARA Nobuo TOKYO MEDICAL AND DENTAL UNIVERSITY, SCHOOL OF MEDICINE, PROFESSOR, 医学部, 教授 (00142258)
OKAMURA Noboru TOKYO MEDICAL AND DENTAL UNIVERSITY, SCHOOL OF MEDICINE, PROFESSOR, 医学部, 教授 (00111592)
竹内 幸子 東京医科歯科大学, 医学部, 助手 (90251503)
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| Project Period (FY) |
1997 – 1999
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| Project Status |
Completed (Fiscal Year 1999)
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| Budget Amount *help |
¥13,200,000 (Direct Cost: ¥13,200,000)
Fiscal Year 1999: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1998: ¥4,200,000 (Direct Cost: ¥4,200,000)
Fiscal Year 1997: ¥6,500,000 (Direct Cost: ¥6,500,000)
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| Keywords | urbanization / environmental microorganism / emerging / re-emerging infectious diseases / environmental monitoring / environmental health indicator / urban public space / urban river |
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| Research Abstract |
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.
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