Relationships between indicators, pathogens and water quality in an estuarine system
Relationships between indicators, pathogens and water quality in an estuarine system
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DOI：
10.1016/0043-1354(96)00079-6
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发表时间：
1996-09-01
期刊：
影响因子：
12.8
通讯作者：
Stevenson, IM
中科院分区：
文献类型：
--
作者：
Ferguson, CM;Coote, BG;Stevenson, IM
本研究探讨了水和沉积物样品的指示和病原微生物的范围从六个网站在城市河口，澳大利亚悉尼。水质受到降雨和污水溢出的影响，这与粪便大肠菌群、粪便链球菌、产气荚膜梭菌孢子、F-RNA噬菌体、气单胞菌属、贾第虫和隐孢子虫属然而，在沉积物中，只有粪大肠菌群浓度显着增加降雨，虽然污水溢流再次导致粪大肠菌群，粪链球菌，C。产气荚膜杆菌孢子和气单胞菌属。沙门氏菌的分离似乎与潮湿的天气事件相吻合，偶尔在河口内的几个地点的沉积物中检测到相同的血清型。然而，肠道病毒的分离是零星的，似乎并不完全与潮湿的天气事件。C.产气荚膜杆菌被鉴定为粪便污染的最有用的指示物，并且是与致病性贾第虫（r = 0.41，p < 0.05）和机会性细菌属气单胞菌（r = 0.39，p < 0.05）的存在显著相关的唯一指示物。F-RNA噬菌体与所检查的任何病原体均无显著相关性。版权所有（C）1996 Elsevier Science Ltd
This study examined water and sediment samples for a range of indicator and pathogenic microorganisms from six sites in an urban estuary, Sydney, Australia. Water quality was affected by rainfall and sewage overflows which were associated with significant increases in the concentration of faecal coliforms, faecal streptococci, Clostridium perfringens spores, F-RNA bacteriophage, Aeromonas spp., Giardia and Cryptosporidium spp. However, in sediments, only faecal coliform concentrations were significantly increased by rainfall, although sewage overflow again resulted in increased concentrations of faecal coliforms, faecal streptococci, C. perfringens spores and Aeromonas. Isolation of Salmonella appeared to coincide with wet weather events and occasionally identical serotypes were detected in sediments at several locations within the estuary. However, isolations of enteric virus were sporadic and did not appear to be exclusively related to wet weather events. C. perfringens was identified as the most useful indicator of faecal pollution and was the only indicator significantly correlated to the presence of pathogenic Giardia (r = 0.41, p < 0.05) and the opportunistic bacterial genus Aeromonas (r = 0.39, p < 0.05). F-RNA bacteriophage was not significantly correlated with any of the pathogens examined. Copyright (C) 1996 Elsevier Science Ltd