Sentences with phrase «significantly higher levels of mercury»

The reason for this is because restaurants tend to favor certain species of tuna, such as bluefin akami and bigeye tuna, which had significantly higher levels of mercury than bluefin toro and yellowfin tuna.

A Swedish study found that people with silver fillings who chew gum for 5 hours or more each day had significantly higher levels of mercury in their blood and urine than those people with silver fillings who chewed gum infrequently.