globalchange  > 过去全球变化的重建
DOI: 10.1016/j.marpolbul.2014.05.059
Scopus记录号: 2-s2.0-84905748777
论文题名:
Cryptosporidium and Giardia in tropical recreational marine waters contaminated with domestic sewage: Estimation of bathing-associated disease risks
作者: Betancourt W.Q.; Duarte D.C.; Vásquez R.C.; Gurian P.L.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2014
卷: 85, 期:1
起始页码: 268
结束页码: 273
语种: 英语
英文关键词: Marine waters ; Parasites ; Recreation ; Risks ; Sewage ; Tropics
Scopus关键词: Monte Carlo methods ; Probability distributions ; Protozoa ; Risks ; Sewage ; Tropics ; Uncertainty analysis ; Water pollution ; Water quality ; Clostridium perfringens ; Dose-response modeling ; Environmental surveillance ; Marine waters ; Parasites ; Recreation ; Recreational water quality ; Water quality deterioration ; Risk perception ; 4',6 diamidino 2 phenylindole ; propidium iodide ; sea water ; fresh water ; sewage ; dose-response relationship ; health risk ; infectious disease ; marine pollution ; Monte Carlo analysis ; parasite ; pathogen ; protozoan ; recreational facility ; sewage ; uncertainty analysis ; water quality ; adult ; article ; Bacteroidales ; child ; Clostridium ; clostridium coccoides ; Clostridium perfringens ; controlled study ; cryptosporidiosis ; Cryptosporidium ; deterioration ; Enterococcus ; environmental impact assessment ; genetic marker ; Giardia ; giardiasis ; health hazard ; human ; marine environment ; Monte Carlo method ; Nomarski interference contrast microscope ; nonhuman ; parasitosis ; pathogenesis ; probability ; recreation ; risk assessment ; sea pollution ; sewage ; swimming ; tropics ; water contamination ; water quality ; animal ; Cryptosporidium ; environmental monitoring ; geography ; Giardia ; isolation and purification ; microbiology ; parasitology ; procedures ; recreation ; risk ; swimming ; Venezuela ; Bacteroidales ; Clostridium coccoides ; Clostridium perfringens ; Cryptosporidium ; Giardia ; Protozoa ; Animals ; Bathing Beaches ; Cryptosporidiosis ; Cryptosporidium ; Environmental Monitoring ; Fresh Water ; Geography ; Giardia ; Giardiasis ; Humans ; Monte Carlo Method ; Recreation ; Risk ; Risk Assessment ; Sewage ; Venezuela ; Water Microbiology
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science ; Earth and Planetary Sciences: Oceanography ; Environmental Science: Pollution
英文摘要: Sewage is a major contributor to pollution problems involving human pathogens in tropical coastal areas. This study investigated the occurrence of intestinal protozoan parasites (Giardia and Cryptosporidium) in tropical recreational marine waters contaminated with sewage. The potential risks of Cryptosporidium and Giardia infection from recreational water exposure were estimated from the levels of viable (oo) cysts (DIC+, DAPI+, PI-) found in near-shore swimming areas using an exponential dose response model. A Monte Carlo uncertainty analysis was performed in order to determine the probability distribution of risks. Microbial indicators of recreational water quality (enterococci, Clostridium perfringens) and genetic markers of sewage pollution (human-specific Bacteroidales marker [HF183] and Clostridium coccoides) were simultaneously evaluated in order to estimate the extent of water quality deterioration associated with human wastes. The study revealed the potential risk of parasite infections via primary contact with tropical marine waters contaminated with sewage; higher risk estimates for Giardia than for Cryptosporidium were found. Mean risks estimated by Monte Carlo were below the U.S. EPA upper bound on recreational risk of 0.036 for cryptosporidiosis and giardiasis for both children and adults. However, 95th percentile estimates for giardiasis for children exceeded the 0.036 level. Environmental surveillance of microbial pathogens is crucial in order to control and eradicate the effects that increasing anthropogenic impacts have on marine ecosystems and human health. © 2014 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/85379
Appears in Collections:过去全球变化的重建
全球变化的国际研究计划

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作者单位: Laboratory of Environmental Microbiology, Microbiology and Cell Biology Center, Venezuelan Institute for Scientific Research, Km 11 Carretera Panamericana, Caracas 1020A, Venezuela; Civil, Architectural, and Environmental Engineering, Drexel University, 3141 Chestnut Street Philadelphia, PA 19104, United States

Recommended Citation:
Betancourt W.Q.,Duarte D.C.,Vásquez R.C.,et al. Cryptosporidium and Giardia in tropical recreational marine waters contaminated with domestic sewage: Estimation of bathing-associated disease risks[J]. Marine Pollution Bulletin,2014-01-01,85(1)
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