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Pathogen Source Identification and Characterization by Designed Sampling

机译:通过设计采样鉴定和鉴定病原

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Nine sampling events, in dry and wet weather, were executed in a combined sewer overflowimpacted stretch of the lower Passaic River at Paterson, New Jersey. Multiple water qualityparameters were measured at 18 sites which included in-stream sites and representative locationsat combined sewer outfalls, stormwater outfalls, and tributaries. The data was analyzed using ttestsand simple linear regression. Analysis of dry weather samples indicated all tributaries in thestudy area act to increase in-stream bacteria concentrations. Bacteria concentrations were higherat 6 AM than at 10 AM or 1 PM, possibly due to increased bacteria decay due to sunlight andtemperature or unknown sources. Total suspended solids concentration was highly correlatedwith bacteria concentration at shallow sites, suggesting the possibility of sediment resuspensionas a possible source at these sites. DO is a significant predictor variable at all sites except theupstream boundary suggesting sewage is a contributor.
机译:在新泽西州帕特森市下部Passaic河的一段下水道溢流影响的一段河段中,共进行了九个干燥和潮湿天气的采样事件。在18个站点中测量了多个水质参数,这些站点包括河道站点和下水道排污口,雨水排污口和支流的代表性地点。使用ttests和简单线性回归分析数据。干旱天气样品的分析表明,研究区域中的所有支流均会增加河内细菌的浓度。 6 AM的细菌浓度高于10 AM或1 PM的细菌浓度,这可能是由于阳光和温度或未知来源引起的细菌衰减增加。浅水区的总悬浮固体浓度与细菌浓度高度相关,这表明在这些水面可能有沉积物重悬的可能。除上游边界表明污水是造成污染的因素外,DO在所有地点都是重要的预测变量。

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