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Long-Term Monitoring of Noxious Bacteria for Construction of Assurance Management System of Water Resources in Natural Status of the Republic of Korea

Journal of Microbiology and Biotechnology 2020년 30권 10호 p.1516 ~ 1524
Bahk Young-Yil, 김현숙, 이옥재, You Kyung-A, 배경선, 이우주, 김동수, 이상섭,
소속 상세정보
 ( Bahk Young-Yil ) - Konkuk University College of Biomedical and Health Science Department of Biotechnology
김현숙 ( Kim Hyun-Sook ) - Kyonggi University Graduate School Department of Life Science
이옥재 ( Rhee Ok-Jae ) - DK EcoV Environmental Microbiology Lab.
 ( You Kyung-A ) - National Institute of Environmental Research Water Supply and Sewerage Research Division
배경선 ( Bae Kyung-Seon ) - National Institute of Environmental Research Water Supply and Sewerage Research Division
이우주 ( Lee Woo-Joo ) - Seoul National University Graduate School of Public Health Department of Public Health Science
김동수 ( Kim Tong-Soo ) - Inha University School of Medicine Department of Parasitology and Tropical Medicine
이상섭 ( Lee Sang-Seob ) - Kyonggi University Graduate School Department of Life Science

Abstract


Climate change is expected to affect not only availability and quality of water, the valuable resource of human life on Earth, but also ultimately public health issue. A six-year monitoring (total 20 times) of Escherichia coli O157, Salmonella enterica, Legionella pneumophila, Shigella sonnei, Campylobacter jejuni, and Vibrio cholerae was conducted at five raw water sampling sites including two lakes, Hyundo region (Geum River) and two locations near Water Intake Plants of Han River (Guui region) and Nakdong River (Moolgeum region). A total 100 samples of 40 L water were tested. Most of the targeted bacteria were found in 77% of the samples and at least one of the target bacteria was detected (65%). Among all the detected bacteria, E. coli O157 were the most prevalent with a detection frequency of 22%, while S. sonnei was the least prevalent with a detection frequency of 2%. Nearly all the bacteria (except for S. sonnei) were present in samples from Lake Soyang, Lake Juam, and the Moolgeum region in Nakdong River, while C. jejuni was detected in those from the Guui region in Han River. During the six-year sampling period, individual targeted noxious bacteria in water samples exhibited seasonal patterns in their occurrence that were different from the indicator bacteria levels in the water samples. The fact that they were detected in the five Korea’s representative water environments make it necessary to establish the chemical and biological analysis for noxious bacteria and sophisticated management systems in response to climate change.

키워드

Noxious bacteria; catchment-scale investigation; water resource; climate change

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