Freshwater sediment

Fleming EJ, EE Mack, PG Green, DC Nelson (2006) Mercury methylation from unexpected sources molybdate-inhibited freshwater sediments and an iron-reducing bacterium. Appl Environ Microbiol 72 457-464. 

Wu Q, DL Bedard, J Wiegel (1997a) Effect of incubation temperature on the route of microbial reductive dechlorination of 2,3,4,6-tetrachlorobiphenyl in polychlorinated biphenyl (PCB)-contaminated and PCB-free freshwater sediments. Appl Environ Microbiol 63 2836-2843. 

Lomans BP, R Maas, R Luderer, HJP op den Camp, A Pol, C van der Drift, GD Vogels (1999) Isolation and characterization of Methanomethylovorans hollandica gen. nov., sp. nov., isolated from freshwater sediment, a methylotrophic methanogen able to grow with dimethyl sulfide and methanethiol. Appl Environ Microbiol 65 3641-3650. 

Van den Wijngaard AJ, DB Janssen, B Withold (1989) Degradation of epichlorohydrin and halohydrins by bacterial cultures isolated from freshwater sediment. J Gen Microbiol 135 2199-2208. 

Jouanneau Y, JC Willison, C Meyer, S Krivobok, N Chevron, J-L Bescombes, G Blake (2005) Stimulation of pyrene mineralization in freshwater sediments by bacterial and plant augmentation. Environ Sci Technol 39 5729-5735. 

Dionisi HM, CS Chewning, KH Morgan, E-M Menn, JP Easter, GS Sayler (2004) Abundance of dioxygenase genes similar to Ralstonia sp. strain U2 nagAc is correlated with naphthalene concentrations in coal tar-contaminated freshwater sediments. Appl Environ Microbiol 70 3988-3995. 

Marine sediments, plant, flesh water lake sediment soil terrestrial plants milk powder Freshwater sediment soil Spruce twigs needles River sediment Coal fly ash... 

Heitkamp MA, Huckins JN, Petty JD, et al. 1984. Fate and metabolism of isopropylphenyl diphenyl phosphate in freshwater sediments. Environmental Science and Technology 18 434-439. 

Burton G A Jr, Gunnison D and Lanza G R (1987), Survival of pathogenic bacteria in various freshwater sediments , Applied Environmental Microbiology, 53, 633-638. 

Roden, E. E. and R. G. Wetzel, 2003, Competition between Fe(III)-reducing and methanogenic bacteria for acetate in iron-rich freshwater sediments. Microbial... 

Copper in livers and muscles of Weddell seals was positively correlated with manganese (Szefer et al. 1994). In general, manganese and copper are positively correlated in tissues of marine vertebrates (Eisler 1984). Uptake of copper from copper-contaminated freshwater sediments by annelid worms is related to the amount of reducible manganese oxide in the sediments (Diks and Allen 1983). 

In Limnodrilus sp., an oligochaete worm, copper bioavailability from surhcial freshwater sediments is associated with the amount of copper present in the manganese oxide fraction of the sediment. The redox potential and pH in the gut of Limnodrilus allows the dissolution of the manganese oxide coating, making copper and other metals available for uptake (Diks and Allen 1983). 

AQUATIC LIFE, FRESHWATER Sediments Great Lakes ... 

Ankley, G.T., V.R. Mattson, E.N. Leonard, C.W. West, and J.L. Bennett. 1993. Predicting the acute toxicity of copper in freshwater sediments evaluation of the role of acid-volatile sulfide. Environ. Toxicol. Chem. 12 315-320. 

Diks, D.M. and H.E. Allen. 1983. Correlation of copper distribution in a freshwater-sediment system to bioavailability. Bull. Environ. Contam. Toxicol. 30 37-43. 

Call, D.J., C.N. Polkinghome, T.P. Markee, L.T. Brooke, D.L. Geiger, J.W. Gorsuch, and K.A. Robillard. 1999. Silver toxicity to Chironomus tentans in two freshwater sediments. Environ. Toxicol. Chem. 18 30-39. 

Krantzberg, G. and P.M. Stokes. 1985. Benthic macroinvertebrates modify copper and zinc partitioning in freshwater-sediment microcosms. Canad. Jour. Fish. Aquat. Sci. 42 1465-1473. 

Belzile, N., et al. 2000. Early diagenetic behavior of selenium in freshwater sediments. Applied Geochemistry, 15, 1439-1454. 

Note (a) BCF is hioconcentration factor, NOEC is no-observed effect concentration. (b) For marine environmental risk assessment, half-life data in freshwater sediment can be overruled by data obtained under marine conditions. (c) Substances are classified when they fulfil the criteria for all three inherent properties for P, B and T. However, there is certain flexibility for instance in cases where one criterion is marginally not fulfilled but the others are exceeded considerably. (d) R48 Danger of serious damage to health by prolonged exposure. ... 

Iron sulphides are ubiquitous in marine and freshwater sediments. They are usually present either as pyrite or as monosulphides, which can be liberated by hydrochloric acid. These acid volatile sulphides give rise to an intense black colour that is characteristic of anoxic sediments. They play an important role in recent diagenetic processes in sediments and the ratio of pyrite to acid volatile sulphides has been used as an historical indicator to determine whether sediments were formed in marine or freshwater conditions. They can be present over a wide range of... 

The same SFE method, but without the modifier, was used for alkylphenols in freshwater sediments, at a temperature of 110°C [26,44, 45]. Between all extractions, a blank dynamic extraction step was performed to avoid carry-over. In this method, NPEOi and NPE02 were extracted separately using Soxhlet, instead of using SFE with modifier. 

OCCURRENCE OF SURFACTANTS IN SURFACE WATERS AND FRESHWATER SEDIMENTS—I. ALKYLPHENOL ETHOXYLATES AND THEIR DEGRADATION PRODUCTS... 

Sediments appear to have relatively enriched levels of NP. The ratio of NP to NPEO in sediments is much higher than in samples of particulate matter (see also Chapter 6.3), and this ratio seems to increase from water < particulate matter < marine sediment < freshwater sediment. In 10 out of 12 freshwater sediments, and 5 out of 11 marine sediments, the NP/NPEO ratio was more than one. In particulate matter, this ratio was observed in fewer samples, namely in 7 out of 50 samples. 

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