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首页> 外文期刊>Estuarine Coastal and Shelf Science >Three-dimensional modeling of Cu and Pb distributions in Boston Harbor, Massachusetts and Cape Cod Bays
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Three-dimensional modeling of Cu and Pb distributions in Boston Harbor, Massachusetts and Cape Cod Bays

机译：波士顿港，马萨诸塞州和科德角湾的铜和铅分布的三维建模

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摘要

The transport and distribution of dissolved Cu (Cu_(diss)) and Pb (Pb_(diss)) in Boston Harbor (BH), Massachusetts Bay (MB) and Cape Cod Bay (CCB) were simulated using an existing three-dimensional hydrodynamic model. Treatment of Cu_(diss) as a conservative tracer produced model results in good agreement with observational data in MB and CCB. Pb_(diss) was modeled as a non-conservative tracer using particulate organic carbon (POC) extracted from a water quality model as the sorption and scavenging matrix for particulate Pb. Despite cessation of discharge from a major treatment plant in 2000 and concurrent reduction in metal loading, Cu_(diss) and Pb_(diss) concentrations in the Harbor remained relatively unchanged between 1998 and 2002. In contrast model results produced water column concentrations in Boston Harbor that were about 10% of the observed current standing stock of Cu_(diss) and only about 20% of Pb_(diss) in 2002. Both field observations and model results incorporating Cu and Pb benthic fluxes suggest that release of these metals from the previously contaminated sediments of the Harbor is now the major source of these metals to the Harbor.
机译：使用现有的三维流体动力学模型模拟了波士顿港（BH），马萨诸塞湾（MB）和鳕鱼角（CCB）中溶解态Cu（Cu_（diss））和Pb（Pb_（diss））的迁移和分布。 Cu_（diss）作为保守示踪剂产生的模型的处理结果与MB和CCB中的观测数据非常吻合。使用从水质模型中提取的颗粒有机碳（POC）作为颗粒Pb的吸附和清除基质，将Pb_（diss）建模为非保守示踪剂。尽管2000年主要处理厂的排放停止并且金属负载同时减少，但港口的Cu_（diss）和Pb_（diss）浓度在1998年至2002年之间保持相对不变。这大约是2002年观测到的Cu_（diss）现有存量的10％，而仅是Pb_（diss）当前存量的20％。现场观察和结合Cu和Pb底栖通量的模型结果均表明，这些金属从先前的释放现在，港口污染的沉积物是这些金属进入港口的主要来源。

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  • 来源
    《Estuarine Coastal and Shelf Science》 |2010年第4期|p.450-463|共14页
  • 作者

    Li Li; Franco Pala; Mingshun Jiang; Christian Krahforst; Gordon T. Wallace;

  • 作者单位

    Environmental, Earth and Ocean Science Department, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, United States;

    Environmental, Earth and Ocean Science Department, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, United States;

    Environmental, Earth and Ocean Science Department, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, United States;

    Massachusetts Bays National Estuary Program, 251 Causeway Street, Boston, MA 02114, United States;

    Environmental, Earth and Ocean Science Department, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, United States;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    trace metals; numerical models; boston harbor; massachusetts bay;

    机译：痕量金属;数值模型波士顿港马萨诸塞湾;
  • 入库时间 2022-08-18 03:35:57

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