1.   The movement of trace-elements through the environment A large number of chemical reactions take place when trace metals move through the environment.

2.   Continued secretion of cations into gastrointestinal fluids may therefore be important in influencing the absorption of dietary trace metals.

3.   Contamination and poor analytical techniques presumably explain why previous values for trace metals in gastric juice were so high.

4.   Among the contaminants found in the Howland Hook sediments are pesticides, trace metals and polychlorinated biphenyls, or PCBs.

5.   Radiation specialist Rosalie Bertell said most trace metals perform a function in the human body, but not uranium.

6.   Tests of the water conducted on samples carried out to Japan show the presence of ammonia, nitrites and trace metals.

7.   The contaminants in the sediment at Howland Hook, the largest container port in New York City, include pesticides, trace metals and polychlorinated biphenyls, or PCBs.