sediment toxicity test Articles
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Preparation and characterization of nickel‐spiked freshwater sediments for toxicity tests: Toward more environmentally realistic nickel partitioning
We compared two spiking methods and evaluated nickel (Ni) partitioning during a series of toxicity tests with eight different freshwater sediments having a range of physico‐chemical characteristics. A two‐step spiking approach with immediate pH adjustment by addition of NaOH at a 2:1 molar ratio to the spiked Ni was effective in producing consistent pH and other chemical characteristics across ...
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The use of sediment toxicity identification evaluation methods to evaluate clean up targets in an urban estuary
The Ballona Creek Estuary (BCE) in Los Angeles, California, is in a highly urbanized watershed and is contaminated by a variety of chemicals and has prevalent sediment toxicity. Sediment cleanup targets for BCE have been established for copper, cadmium, lead, zinc, chlordane, DDTs, PCBs and PAHs, based on sediment quality guidelines. A sediment toxicity identification evaluation (TIE) was ...
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Assessment of sediment quality and pore water ecotoxicity in Kebir Rhumel basin (NE-Algeria): a combined approach
The objectives of this study are to use different approaches to assess the current pollution status in the wadis of the Kebir Rhumel basin. First, sediment trace metal contents were measured by flame atomic absorption spectroscopy. Then, sediment quality was assessed on the basis of contamination assessment indexes such as: Geoaccumulation Index (Igeo), Contamination factor (Cf), Contamination ...
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