Contaminated Aquatic Sediments

Contaminated Aquatic Sediments.

A review of the literature published in 2014 relating to the assessment, evaluation and remediation of contaminated aquatic sediments is presented. The review is divided into the following sections: policy and guidance, methodology, distribution, fate and transport, bioavailability, bioaccumulation, risk, toxicity and remediation.

Bacteria in Uranium-Contaminated Sediments Undergoing Bioremediation

A 16S rRNA-targeted tunable bead array was developed and used in a retrospective analysis of metaland sulfate-reducing bacteria in contaminated subsurface sediments undergoing in situ U(VI) bioremediation. Total RNA was extracted from subsurface sediments and interrogated directly, without a PCR step. Bead array validation studies with total RNA derived from 24 isolates indicated that the behav...

Understanding Contaminated Sediments: Bioavailability of Contamination

Mercury-contaminated sediments affect amphipod feeding.

A 125-mile reach of the South River, Virginia, was contaminated with mercury during the first half of the 20th century. As increased concentrations of mercury have persisted, researchers have carefully studied its distribution in the river biota and estimated associated risks. The present study evaluated the influence of mercury on feeding rate and uptake by the amphipod Hyalella azteca. The te...

Microbial Community Structure in Petroleum Contaminated Sediments

1 Western Michigan University, Department of Biological Sciences, Kalamazoo, 9 Michigan 49008-5410, USA 10 2 Oklahoma State University, T. Boone Pickens School of Geology, 105 Noble Research 11 Center, Stillwater, OK 74078-3031, USA 12 3 U.S. Environmental Protection Agency, ORD, NERL, ESD, CMB, Las Vegas, Nevada, 13 89119. 14 ∆ Current Address: U.S. Geological Survey, 6520 Mercantile Way, Suit...