ERDC TN-DOER-R3, "Validating Pathway Analysis of Organic Contaminants from Aged Dredged Material Using Plants and Worms"
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چکیده
PURPOSE: Contaminants in dredged material (DM) placed in an upland situation, such as a confined disposal facility (CDF), may move from substrates into food webs because of their contact with CDF-colonizing or –inhabiting plants and animals, and therefore may cause unacceptable risks outside the CDF. The primary goal of this technical note is to provide guidance on evaluating bioaccumulation of organic contaminants and toxicological effects in test species representing two trophic levels of a food web.
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ERDC TN-EQT-13-1 "Modeling RDX Reduction within Iron Bed Reactors"
PURPOSE: Iron has been used to reduce organic contaminants including high explosives (HE) such as Research Department Explosive (RDX). Work is ongoing at the U.S. Army Engineer Research and Development Center (ERDC) to develop guidelines for using iron bed reactors to remove RDX in surface water runoff from the impact areas of firing ranges. As part of this work, a mathematical model was develo...
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PURPOSE: The Fish Larvae and Egg Exposure System (FLEES) was designed to simulate the resuspension of sediment related to dredging operations and has been used over time to generate biological response data for dredging projects where environmental windows (EW) severely restrict dredging operations (Lutz et al. 2012). This technical note focuses on the physical and behavioral effects of resuspe...
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PURPOSE: The purpose of this study was to record and analyze underwater sounds generated by a small hydraulic cutterhead dredge during maintenance dredging in the Stockton Deepwater Shipping Channel (SDWSC), California. Of particular interest was determining 1) the sound frequency characteristics of the excavation process, 2) the received sound pressure levels at various distances from the sour...
متن کاملToxicological Exposure of Sediment-Bound Hydrophobic Organic Contaminants as a Function of the Quality of Sediment Organic Carbon and Microbial Degradation
PURPOSE: This technical note 1) relates the importance of the toxicological exposure potential of hydrophobic organic contaminants (HOC) in sediments and dredged material to implementation of public laws and regulations governing environmental risk assessment, 2) summarizes recent peerreviewed literature on sediment HOC exposure potential in the context of the sorbant quality of sediment organi...
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تاریخ انتشار 2004