11.   That means the fish are concentrated where MMS sediment samples indicate mercury levels may be highest.

12.   The doctors run hair or urine tests to detect mercury levels, and high amounts lead to a suggestion to remove fillings.

13.   The EPA says high mercury levels are a public health problem.

14.   The mercury levels in those fish, he said, were no lower than mercury found in samples of modern fish.

15.   The report also urges reductions in mercury pollution in the air to help decrease mercury levels in fish.

16.   The study cited Massachusetts as one of two states with sufficient notifications in place regarding mercury levels in fish.

17.   Though mercury levels in the air are generally too low to pose a direct threat, fish readily accumulate the poison in their flesh.

18.   Though the mercury levels in the air are generally harmless, mercury can concentrate in water, especially in fish that prey on other fish.

19.   To reduce mercury levels, he prescribed Dimaval, a European drug not approved by the U.S. Food and Drug Administration.

20.   When approached by the Register, representatives from the oil and gas industry did not challenge the studies that showed elevated mercury levels around rigs.