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首页> 外文期刊>International Journal of Environmental Research and Public Health >Comparative Assessment of the Physico-Chemical and Bacteriological Qualities of Selected Streams in Louisiana
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Comparative Assessment of the Physico-Chemical and Bacteriological Qualities of Selected Streams in Louisiana

机译：路易斯安那州部分河流的理化和细菌学质量的比较评估

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The objective of this research was to compare the chemical/physical parameters and bacterial qualities of selected surface water streams in Louisiana, including a natural stream (control) and an animal waste related stream. Samples were collected and analyzed for fecal coliforms. Fecal coliforms isolated from these samples were identified to the species level. Chemical analysis was performed following standard test protocols (LaMotte 2002). An analysis of biological oxygen demand (BOD), chemical oxygen demand (COD), total organic carbon (TOC), total dissolved solids (TDS), conductivity, pH, temperature, ammonia nitrogen, nitrate nitrogen, iron, copper, phosphate, potassium, sulfate, turbidity, zinc and bacterial levels was performed following standard test protocols as presented in Standard Methods for the Examination of Water and Wastewater [9]. Results of the comparisons of the various surface water streams showed that phosphate levels, according to Mitchell and Stapp, were considered good for Lake Claiborne (control) and Bayou Dorcheat. The levels were found to be .001 mg/L and .007 mg/L respectively. Other streams associated with animal waste, had higher phosphate levels of 2.07 mg/L and 2.78 mg/L, respectively. Conductivity and total dissolved solids (TDS) levels were the lowest in Lake Claiborne and highest in the Hill Farm Research Station stream. It can be concluded from the data that some bacterial levels and various nutrient levels can be affected in water resources due to non-point source pollution. Many of these levels will remain unaffected.
机译：这项研究的目的是比较路易斯安那州部分地表水流的化学/物理参数和细菌质量，包括天然水流（对照）和与动物废物有关的水流。收集样品并分析粪便大肠菌。从这些样品中分离出的粪便大肠菌被鉴定到物种水平。根据标准测试方案进行化学分析（LaMotte 2002）。生物需氧量（BOD），化学需氧量（COD），总有机碳（TOC），总溶解固体（TDS），电导率，pH，温度，氨氮，硝酸盐氮，铁，铜，磷酸盐，钾的分析，硫酸盐，浊度，锌和细菌水平的测定按照《水和废水检查的标准方法》 [9]中介绍的标准测试规程进行。各种地表水流的比较结果表明，根据Mitchell和Stapp的说法，磷酸盐水平被认为对克莱伯恩湖（对照）和Bayou Dorcheat有利。发现该水平分别为.001 mg / L和.007 mg / L。与动物粪便相关的其他物流的磷酸盐含量分别较高，分别为2.07 mg / L和2.78 mg / L。电导率和总溶解固体（TDS）水平在克莱伯恩湖（Lake Claiborne）中最低，在希尔农场研究站（Hill Farm Research Station）溪中最高。从数据可以得出结论，由于面源污染，水资源中某些细菌水平和各种营养水平可能受到影响。这些级别中的许多级别将保持不受影响。

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