Effects of Rainfall on Microbial Water Quality on Haeundae and Gwangan Swimming Beach

Seoung-Hwa Choi; Seung-Min Lee; Gyeong-Seon Kim; Mi-Hee Kim; Hwa-Seong Ji; Yu-Na Jeong; Eun-Chul Yoo; Jeong-Gu Cho

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저자정보: Seoung-Hwa Choi (Busan Metropolitan City Institute of Health & Environment) Seung-Min Lee (Busan Metropolitan City Institute of Health & Environment) Gyeong-Seon Kim (Busan Metropolitan City Institute of Health & Environment) Mi-Hee Kim (Busan Metropolitan City Institute of Health & Environment) Hwa-Seong Ji (Busan Metropolitan City Institute of Health & Environment) Yu-Na Jeong (Busan Metropolitan City Institute of Health & Environment) Eun-Chul Yoo (Busan Metropolitan City Institute of Health & Environment) Jeong-Gu Cho (Busan Metropolitan City Institute of Health & Environment)

저널정보: 대한바이러스학회 JOURNAL OF BACTERIOLOGY AND VIROLOGY JOURNAL OF BACTERIOLOGY AND VIROLOGY Vol.46 No.2

발행연도: 2016.6

수록면: 71 - 83 (13page)

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The associations between storm events, urban runoff and costal water quality have not been well investigated in Korea. A temporal and spatial analysis during summer, 2015 was conducted to determine associates between urban runoff and fecal indicator bacteria (Escherichia coli, Enterococcus) levels at two popular coastal beaches (Gwanganri beach and Haundae beach) in Busan. In this study, a clear relationship between rainfall and elevated number of indicators was observed. Two beaches met the costal beach water health standards after less than 3.0 mm of rain. Only for storms less than 2.5 mm was no observable rainfall effect. Our results revealed that exceedances were greatest in 5 hours following 41.0~45.5 rainfall, then declined the bacterial concentrations in 8 hours after the storm and they generally returned to levels below water health standards within 10~14 hours. But it took 2.7 days to get the level of water quality of dry days. The time required for water quality recovery depends on the intensity and duration of rainfall. In the event of intense rainfall issuance of beach closure by public authorities is warranted to protect public health.

#Costal water quality #Runoff #Rainfall #Enterococcus #E. coli #Coastal beach

참고문헌 (21)

참고문헌 신청

[보고서] - / / The Annual Report of Busan Metropolitan City Institute of Health & Environment 2002-2014 : 12 ~ 24

[학술지(정기간행물)] - Drew A / 2003 / Relationship between rainfall and beach bacterial concentrations on Santa Monica Bay beaches / J Water Health 1 : 85 ~ 89

[학술지(정기간행물)] - Weiwei Z / 2013 / Effects of rainfall on microbial water quality on Qingdao No. 1 Bathing Beach, China / Marine Pollution Bulletin 66 : 185 ~ 190

[학술지(정기간행물)] - Rachel TN / 2013 / Storm effects on regional beach water quality along the southern California shoreline / J Water Health 1 : 23 ~ 31

[학술지(정기간행물)] - Dwight RH / 2002 / Association of urban runoff with coastal water quality in Orange county, California / Water Environ Research 74 : 83 ~ 90

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