He added that the new rules would improve the industry's economic well-being while avoiding "the risk of excessive concentration."

Well over two million people are at risk from excessive concentrations of lead, which damages children's brains.

This may be an excessive concentration in a plan specifically meant to be for retirement security.

But the deal also swiftly drew criticism for creating what some consider excessive concentration in media ownership.

The Senate in late March 1990 passed a bill designed to prevent excessive concentration of media ownership.

The Fed said that antitrust issues, such as excessive concentration, were not a concern.

In females, the excessive concentrations cause male characteristics to develop and interfere with normal female functions.

The same Members, however, mentioned concerns about excessive concentration.

I sometimes wonder if excessive concentration on detail is not turning our brains spongy.

But "the American political process almost instinctively compensates for excessive concentration of power."