The area contains the largest concentration of people in the state.

Here too fish in certain areas are found to contain high concentrations of mercury.

The root contains even higher concentrations than the aerial parts.

Their vast expanses contain the largest concentration of animal life.

In addition, this area contains the highest concentration of west coast endemics.

The drinks are represented as containing high concentrations of antioxidants.

This area contains the greatest concentration of cherry trees in the US.

Environmentalists say the ash, containing high concentrations of metals, is unsafe.

This may prove useful for target samples containing very low concentrations of these particular transcripts.

Although coal contains only small concentrations of mercury, it is burnt in very large volumes.