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首页> 外文期刊>International Journal of Soil, Sediment and Water >Comparison of Bacterial Levels from Water and Sediments among Upper and Lower Areas of Guion Creek
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Comparison of Bacterial Levels from Water and Sediments among Upper and Lower Areas of Guion Creek

机译：Guion Creek上部和下部区域水和沉积物中细菌水平的比较

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Harbor Island Park located in Mamaroneck Harbor was frequently closed due to the exceeding levels of enterococci found in the water. A filter system Gunderboom? BPSTM (Beach Protection System) was installed in 2002 at the beach to lower bacterial levels in the swimming area. Our previous studies in 2006 showed that the densities of E. coli and coliform bacteria recovered from water and sediment were significantly lower inside the Gunderboom? when compared to the outside and the surrounding watersheds: Mamaroneck River, Guion Creek, and Shore Acres Beach. However, higher densities of bacteria were found in Guion Creek which directly drains into the harbor. The current study focuses in the comparison of E. coli and enterococci levels from water and sediment samples collected from the upper areas of Guion Creek (Beaver Swamp, the stream at Rye Neck High School and Upper Guion Creek) and the lower areas of Guion Creek (Lower Guion Creek, outside and inside of the Gunderboom?). Water and sediment specimen were collected bi-weekly at these 6 sites from May to November of 2007, especially after heavy rainfall. The results showed that the densities of E. coli and enterococci were significantly lower inside the Gunderboom? which proved again the effectiveness of the filter in lowering bacteria in water. In addition, the densities of enterococci and E. coli were found significantly higher in water and sediment samples collected in Beaver Swamp, Rye Neck High School and Upper Guion Creek than the other 3 lower regions. In conclusion, our study suggests some non-point source bacterial contamination located in the upper areas of the Guion Creek and may contribute to the increased densities of E. coli and enterococci in the Mamaroneck Harbor.
机译：由于水中的肠球菌含量超标，位于马马龙内克港口的海港岛公园经常关闭。过滤系统Gunderboom？ BPSTM（海滩保护系统）于2002年安装在海滩上，以降低游泳区的细菌水平。我们在2006年的先前研究表明，从水和沉积物中回收的大肠杆菌和大肠菌群的密度明显低于Gunderboom？与外部和周围的分水岭相比：Mamaroneck河，Guion Creek和Shore Acres海滩。然而，在直接排入海港的吉翁溪中发现了更高密度的细菌。本研究的重点是比较从Guion Creek上游地区（海狸沼泽，Rye Neck高中和Guion Creek上游的溪流）和Guion Creek下游地区收集的水和沉积物样本中大肠杆菌和肠球菌水平的比较。 （更低的Guion Creek，在Gunderboom的内部和外部？）。从2007年5月至11月，这6个地点每两周收集一次水和沉积物标本，尤其是在暴雨之后。结果显示，Gunderboom？内的大肠杆菌和肠球菌的密度显着降低。这再次证明了过滤器在减少水中细菌方面的有效性。此外，在海狸沼泽，拉伊内克高中和上吉翁河上采集的水和沉积物样本中，发现的肠球菌和大肠杆菌的密度明显高于其他三个较低地区。总之，我们的研究表明，一些非点源细菌污染位于Guion Creek的上部地区，可能导致Mamaroneck港口的大肠杆菌和肠球菌密度增加。

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