The role of acid-volatile sulfide in determining cadmium bioavailability and toxicity in freshwater sediments

1991 ◽  
Vol 10 (10) ◽  
pp. 1309-1319 ◽  
Author(s):  
Anthony R. Carlson ◽  
Gary L. Phipps ◽  
Vincent R. Mattson ◽  
Patricia A. Kosian ◽  
Anne M. Cotter
1993 ◽  
Vol 12 (2) ◽  
pp. 315-320 ◽  
Author(s):  
Gerald T. Ankley ◽  
Vincent R. Mattson ◽  
Edward N. Leonard ◽  
Corlis W. West ◽  
Jon L. Bennett

1990 ◽  
Vol 9 (12) ◽  
pp. 1487-1502 ◽  
Author(s):  
Dominic M. Di Toro ◽  
John D. Mahony ◽  
David J. Hansen ◽  
K. John Scott ◽  
Michael B. Hicks ◽  
...  

1999 ◽  
Vol 65 (5) ◽  
pp. 2116-2121 ◽  
Author(s):  
Bart P. Lomans ◽  
Huub J. M. Op den Camp ◽  
Arjan Pol ◽  
Chris van der Drift ◽  
Godfried D. Vogels

ABSTRACT The roles of several trophic groups of organisms (methanogens and sulfate- and nitrate-reducing bacteria) in the microbial degradation of methanethiol (MT) and dimethyl sulfide (DMS) were studied in freshwater sediments. The incubation of DMS- and MT-amended slurries revealed that methanogens are the dominant DMS and MT utilizers in sulfate-poor freshwater systems. In sediment slurries, which were depleted of sulfate, 75 μmol of DMS was stoichiometrically converted into 112 μmol of methane. The addition of methanol or MT to DMS-degrading slurries at concentrations similar to that of DMS reduced DMS degradation rates. This indicates that the methanogens in freshwater sediments, which degrade DMS, are also consumers of methanol and MT. To verify whether a competition between sulfate-reducing and methanogenic bacteria for DMS or MT takes place in sulfate-rich freshwater systems, the effects of sulfate and inhibitors, like bromoethanesulfonic acid, molybdate, and tungstate, on the degradation of MT and DMS were studied. The results for these sulfate-rich and sulfate-amended slurry incubations clearly demonstrated that besides methanogens, sulfate-reducing bacteria take part in MT and DMS degradation in freshwater sediments, provided that sulfate is available. The possible involvement of an interspecies hydrogen transfer in these processes is discussed. In general, our study provides evidence for methanogenesis as a major sink for MT and DMS in freshwater sediments.


1996 ◽  
Vol 5 (4) ◽  
pp. 255-264 ◽  
Author(s):  
Gerald T. Ankley ◽  
Karsten Liber ◽  
Daniel J. Call ◽  
Thomas P. Markee ◽  
Timothy J. Canfield ◽  
...  

2019 ◽  
Vol 17 (1) ◽  
pp. 153-160 ◽  
Author(s):  
S. C. Mondal ◽  
B. Sarma ◽  
M. Farooq ◽  
D. J. Nath ◽  
N. Gogoi

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