Metal bioavailability: EPA workshop identified research needs

Article Abstract:

The cycles of such trace elements as lead and nickel have been changed by human activities. This situation has increased the importance of bioavailability studies, which identify the factors that control the body's uptake of a metal. A Jul 1990 workshop at the Environmental Protection Agency's Environmental Research Center focused on research on the health risks of 10 toxic trace metals. The participants identified a need for better analytical techniques and studies on the levels at which metal intake becomes toxic.

Health aspects, Metals, Metals (Materials), Micronutrients, Trace elements in the body

---

Bioavailability of sedimentary contaminants subject to deposit-feeder digestion

Article Abstract:

The relationship between bioavailability of sedimentary contaminants and digestive biochemical conditions was investigated in benthic animals. The results showed that availability of contaminants in sediments is determined by their solubilization rates. The rates of solubilization of metals under digestive conditions were higher than those predicted by water-solid partitioning with clean seawater.

Environmental aspects, Pollutants

---

Mechanisms of Cu solubilization during deposit feeding

Article Abstract:

Complexation enhanced metal remobilization by gut fluids has a significant effect on bioavailability during deposit feeding. Comparisons of copper release potentials of modified and unmodified gut fluids of deposit feeders was measured via microwave treatment. Results show that complexation rather than enzyme action affects bioavailability of copper.

Research and Development in the Physical, Engineering, and Life Sciences, Water Pollution Control R&D, Water pollution, Contamination, Copper, Copper (Nutrient), Water pollution research

Similar abstracts:

• Abstracts: Looking better: Advanced light microscopy for the research masses. Eye of the beholder
• Abstracts: Science and everyday life. Government funding of research and development. The scientific wealth of nations
• Abstracts: New funds plant seeds for genome research effort: Australia(1) From genome to proteome: looking at a cell's proteins
• Abstracts: Hot property: biologists who compute. Disputed results now just a footnote. NCI cuts contracts to fund more grants
• Abstracts: DOE environmental management program awards first basic research grants. Chiral compounds show promise as environmental tracers

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.