Daily measures of microbes and human health at a non-point source marine beach.

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Journal Title, Volume, Page: 
Journal of Water and Health, 9(3): 443-457
Year of Publication: 
Amir M. Abdelzaher
Mary E. Wright
Cristina Ortega
A. Rasem Hasan
NSF NIEHS Oceans and Human Health Center, University of Miami, 4600 Rickenbacker Causeway Miami, FL 33149, USA
Current Affiliation: 
Department of Civil Engineering, An-Najah National University, P.O. Box 7, Nablus, Palestine.
Tomoyoki Shibata
Helena M. Solo-Gabriele
Jonathan Kish
Kelly Withum
Guoqing He
Samir M. Elmir
J. Alfredo Bonilla
Tonya D. Bonilla
Carol J. Palmer
Troy M. Scott
Christopher D. Sinigalliano
Maribeth L. Gidley
David Wanless
Lisa R. W. Plano
Anna C. Garza
Xiaofang Zhu
Jay M. Fleisher
Lora E. Fleming
Lukasik J
Harwood VJ
Gidley ML
Stewart JR
Dickerson JW
Yampara-Iquise H
Carson C
Preferred Abstract (Original): 
Studies evaluating the relationship between microbes and human health at non-point source beaches are necessary for establishing criteria which would protect public health while minimizing economic burdens. The objective of this study was to evaluate water quality and daily cumulative health effects (gastrointestinal, skin, and respiratory illnesses) for bathers at a non-point source subtropical marine recreational beach in order to better understand the inter-relationships between these factors and hence improve monitoring and pollution prevention techniques. Daily composite samples were collected, during the Oceans and Human Health Beach Exposure Assessment and Characterization Health Epidemiologic Study conducted in Miami (Florida, USA) at a non-point source beach, and analyzed for several pathogens, microbial source tracking markers, indicator microbes, and environmental parameters. Analysis demonstrated that rainfall and tide were more influential, when compared to other environmental factors and source tracking markers, in determining the presence of both indicator microbes and pathogens. Antecedent rainfall and F+ coliphage detection in water should be further assessed to confirm their possible association with skin and gastrointestinal (GI) illness outcomes, respectively. The results of this research illustrate the potential complexity of beach systems characterized by non-point sources, and how more novel and comprehensive approaches are needed to assess beach water quality for the purpose of protecting bather health.