In some cases, mercury levels have reached 300 parts per million - 600 times the acceptable level.

One patient's hair was found to have a mercury level of 390 ppm.

On average, the mercury level found in these 14 subjects was 48.3 ppm per person.

These showed mercury level in the range of 0.2 g/kg.

The advisory committee had also wanted the agencies to recommend fish known to have lower mercury levels.

Yet as recently as three years ago, fish samples showed far lower mercury levels.

My mercury levels were a little high, but not high enough to cause fish fog.

People eating fish downstream from the mine have elevated mercury levels.

Here mercury levels are one thousand times greater than one would expect in such a remote area.

Preventing mercury levels from getting too high limits the amount available for inhalation.

Still, the levels of mercury in the air are minute.

In some cases, mercury levels have reached 300 parts per million - 600 times the acceptable level.

High levels of mercury can damage a baby's developing brain.

The highest levels of mercury have been found in the Northeast.

One patient's hair was found to have a mercury level of 390 ppm.

I read that the levels of mercury in sea fish, from pollution, are at danger level.

Tests show he's carrying ten times the acceptable level of mercury.

A Florida panther was found dead with levels of mercury high enough to kill a human.

On average, the mercury level found in these 14 subjects was 48.3 ppm per person.

But now he thinks elevated levels of mercury could be to blame.