Bioelution, Bioavailability, and Toxicity of Cobalt Compounds Correlate

Cobalt and Cobalt Compounds That Release Cobalt Ions In Vivo

This listing of the class of cobalt and cobalt compounds that release cobalt ions in vivo (as defined below) supersedes the previous listing of cobalt sulfate in the Report on Carcinogens. The compound cobalt sulfate was first listed in the Eleventh Report on Carcinogens in 2004 as reasonably anticipated to be a human carcinogen based on sufficient evidence of carcinogenicity in experimental an...

Cobalt and Cobalt Compounds That Release Cobalt Ions In Vivo

The Report on Carcinogens includes two separate listings (i.e., profiles) for cobalt-related exposures: Cobalt and Cobalt Compounds That Release Cobalt Ions In Vivo and Cobalt-Tungsten Carbide: Powders and Hard Metals. Cobalt and cobalt compounds as a class are listed for the first time in the Fourteenth Report on Carcinogens, and this listing includes and supersedes the listing for cobalt sulf...

Cobalt speciation and bioavailability in marine organisms

We describe comparative studies, using double-radiolabelling techniques, on the uptake and retention of cobalt species in a simple marine food chain which includes phytoplankton (Dunaliella tertiolecta and Chaetoceros pseudocurviseturn), mixed copepods (mainly Centropages sp.), and fish (the sea perch Serranus scnba). Retention of cobalt from the diet was also studied for the latter 2 organisms...

Cobalt and Nickel Bioavailability for Biogas Formation

Geochemical modulation of bioavailability and toxicity of nitroaromatic compounds to aquatic plants.

Nitroaromatic compounds (NACs) are prominent soil and sediment contaminants that are strongly adsorbed by smectites at extents that depend on hydration properties of the exchangeable cation. Potassium smectites adsorb nitroaromatics much more strongly than calcium smectites, so that adjustment of K+ versus Ca2+ occupation on cation exchange sites in smectites can be used to modulate the retenti...