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首页> 外文期刊>Environmental Science & Technology >Assessment of pathogens and toxicants in New Orleans, LA following Hurricane Katrina
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Assessment of pathogens and toxicants in New Orleans, LA following Hurricane Katrina

机译：卡特里娜飓风过后，对路易斯安那州新奥尔良的病原体和有毒物质进行评估

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Storm surge associated with Hurricane Katrina and the breach of levees protecting New Orleans, Louisiana allowed floodwaters from Lake Pontchartrain to inundate 80% of the city. Environmental samples were collected during September 16-18, 2005 to determine immediate human and wildlife health hazards from pathogens and toxicants in the floodwaters. Baseline information on potential long-term environmental damage resulting from contaminants in water and sediments pumped into Lake Pontchartrain was also collected. Concentrations of aldrin, arsenic, lead, and seven semivolatile organic compounds in sediments/ soils exceeded one or more United States Environmental Protection Agency (USEPA) thresholds for human health soil screening levels and high priority bright line screening levels. High numbers of Aeromonas spp., pathogenic Vibrio spp., and other coliform bacteria were found in floodwater samples. Alligator and snake tissues did not contain excessive toxicant concentrations. Initial findings suggest numerous environmental contaminants are present in New Orleans and support the need for further evaluation of the extent of those threats.
机译：与卡特里娜飓风有关的风暴潮和路易斯安那州新奥尔良的堤防遭到破坏，使庞恰特雷恩湖的洪水淹没了该市80％的土地。 2005年9月16日至18日收集了环境样本，以确定洪水中病原体和有毒物质对人类和野生动植物的健康危害。还收集了有关泵入庞恰特雷恩湖的水和沉积物中的污染物所造成的潜在的长期环境损害的基准信息。沉积物/土壤中的艾氏剂，砷，铅和七种半挥发性有机化合物的浓度超过了美国环境保护局（USEPA）的一项人类健康土壤筛查水平和高优先级明线筛查水平阈值。在洪水样本中发现了大量的气单胞菌，致病性弧菌和其他大肠菌。扬子鳄和蛇组织不含过量的毒物。初步发现表明，新奥尔良存在许多环境污染物，并支持进一步评估这些威胁的程度的需要。

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