Toxicity of cadmium in sediments: The role of acid volatile sulfide

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 ◽  
...  
1993 ◽  
Vol 12 (2) ◽  
pp. 315-320 ◽  
Author(s):  
Gerald T. Ankley ◽  
Vincent R. Mattson ◽  
Edward N. Leonard ◽  
Corlis W. West ◽  
Jon L. Bennett

1991 ◽  
Vol 10 (10) ◽  
pp. 1309-1319 ◽  
Author(s):  
Anthony R. Carlson ◽  
Gary L. Phipps ◽  
Vincent R. Mattson ◽  
Patricia A. Kosian ◽  
Anne M. Cotter

2019 ◽  
Vol 7 (2A) ◽  
Author(s):  
Renata Dias Abreu Chaves ◽  
Paulo Cesar Horta Rodrigues ◽  
Ana Claudia Queiroz Ladeira

Acid mine drainage (AMD) is one of the main environmental issue caused by chemical and bacterial oxidation of pyrite (FeS2) and other sulfite minerals when exposed to atmospheric conditions during mining. In Brazil, AMD occurs in a former uranium mine and contains radionuclides and other elements, which are precipitated from acidic water by liming. Due to the inefficiency of the treatment, contaminants overflow to the water reservoir of Indústrias Nucleares do Brasil – INB in Caldas. The multiplicity of interactions that can occur between the contaminants and the sediments of the reservoir requires a broader approach in order to understand the fixation and/or transport of these elements. In this work the natural remediation approach is reviewed and an initial chemical and radiochemical characterization of the reservoir sediments is presented. Uranium was determined by spectrophotometry, Ra-226, Ra-228 and Pb-210 by gamma spectrometry and zinc by ICP-OES. Twenty-six sediment samples were collected in the reservoir and a bathymetry survey by sonar was performed to determine the thickness of the sediment layer. All the data were processed using the ArcGIS program. To assess the potential mobility and bioavailability of contaminants and to study the role of bacterial sulfate reduction in the immobilization of these contaminants, Acid-volatile sulfide (AVS) analyzes will be performed as a further step.


2010 ◽  
Vol 30 (1) ◽  
pp. 162-172 ◽  
Author(s):  
Lien T.H. Nguyen ◽  
G. Allen Burton ◽  
Chris E. Schlekat ◽  
Colin R. Janssen

JAMA ◽  
1966 ◽  
Vol 195 (12) ◽  
pp. 1005-1009 ◽  
Author(s):  
D. J. Fernbach
Keyword(s):  

JAMA ◽  
1966 ◽  
Vol 195 (3) ◽  
pp. 167-172 ◽  
Author(s):  
T. E. Van Metre

2018 ◽  
Vol 41 ◽  
Author(s):  
Winnifred R. Louis ◽  
Craig McGarty ◽  
Emma F. Thomas ◽  
Catherine E. Amiot ◽  
Fathali M. Moghaddam

AbstractWhitehouse adapts insights from evolutionary anthropology to interpret extreme self-sacrifice through the concept of identity fusion. The model neglects the role of normative systems in shaping behaviors, especially in relation to violent extremism. In peaceful groups, increasing fusion will actually decrease extremism. Groups collectively appraise threats and opportunities, actively debate action options, and rarely choose violence toward self or others.


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