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| 1 | 不同功能地表水体中病原微生物指示物的标准比较显示文摘地表水病原微生物污染对人类健康构成了巨大的潜在威胁,地表水体的病原微生物污染及其控制日益得到人们的重视.因此,本文从地表水环境功能和人类健康的角度出发,通过大量调研国内外不同功能的地表水环境质量标准,总结了当前常用病原微生物指示物的特点与指示效果;综述和比较了美国、欧盟、世界卫生组织和中国水环境标准中有关病原微生物控制指标的演变历程;最后对地表水体中病原微生物指示物的研究进行了展望.总体而言,当前常用指示微生物涵盖细菌、病毒和原生动物,但应针对不同目的选取不同类型的指示微生物;美国、欧盟和世界卫生组织的病原微生物控制指标已陆续转向大肠杆菌与肠球菌,而我国仅经历了从总大肠菌群到粪大肠菌群的转变.培养法与分子生物学方法是当前主要的病原微生物检测手段,前者广为应用,后者更为方便、快捷,但无法与相应标准对接. | 陈亚楠 王亚炜 魏源送 郑祥 王光宇 | 2015 | 环境科学学报2015,35,2: | 33 |
| 2 | Human enteric viruses–potential indicators for enhanced monitoring of recreational water quality显示文摘Recreational waters contaminated with human fecal pollution are a public health concern, and ensuring the safety of recreational waters for public use is a priority of both the Environmental Protection Agency(EPA) and the Centers for Disease Control and Prevention(CDC). Current recreational water standards rely on fecal indicator bacteria(FIB) levels as indicators of human disease risk. However present evidence indicates that levels of FIB do not always correspond to the presence of other potentially harmful organisms, such as viruses. Thus, enteric viruses are currently tested as water quality indicators, but have yet to be successfully implemented in routine monitoring of water quality. This study utilized enteric viruses as possible alternative indicators of water quality to examine 18 different fresh and offshore recreational waters on O‘ahu, Hawai‘i, by using newly established laboratory techniques including highly optimized PCR, real time PCR, and viral infectivity assays. All sample sites were detected positive for human enteric viruses by PCR including enterovirus, norovirus genogroups I and II, and male specific FRNA coliphage. A six time-point seasonal study of enteric virus presence indicated significant variation in virus detection between the rainy and dry seasons. Quantitative PCR detected the presence of norovirus genogroup II at levels at which disease risk may occur, and there was no correlation found between enteric virus presence and FIB counts. Under the present laboratory conditions, no infectious viruses were detected from the samples PCR-positive for enteric viruses. These data emphasize both the need for additional indicators for improved monitoring of water quality, and the feasibility of using enteric viruses as these indicators. | Erin Allmann Updyke Zi Wang Si Sun Christina Connell Marek Kirs Mayee Wong Yuanan Lu | 2015 | Virologica Sinica2015,30,5: | 0 |
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