A Closer Look at Mercury Hair Test

  • Hair is now a way to test people for mercury levels, as opposed to more invasive tests of blood and urine. (Photo by Anna Miller)

Health officials are experimenting with another way to gauge the level of mercury in people who eat a lot of fish. The only test sample needed is… hair. The Great Lakes Radio Consortium’s Chuck Quirmbach
reports:

Transcript

Health officials are experimenting with another way to gauge the level of mercury in people who eat a lot of fish. The only test sample needed is… hair. The Great Lakes Radio Consortium’s Chuck Quirmbach reports:


Doctors can already test your blood and urine for mercury. Now, as a less invasive technique, some health officials can test the hair near your scalp for the toxic chemical. There’s some debate over the quality of the tests, the lab analyses, and over what a high test reading means. The federal health warning for mercury in hair is one part per million. But that’s for susceptible populations like an unborn fetus.


Jack Spengler is a professor of environmental health at Harvard University. he recently ate a lot of fish and says his hair tested out at 3 parts per million of mercury.


“But I’m not going apoplectic about it because I know if I just watch my consumption, I can moderate that over time… and there’s that safety margin…that I suspect I’d have to be much higher for much longer to really have symptoms. ”

Prolonged high levels of the most toxic form of mercury, methyl mercury can trigger various health problems in adults such as memory loss and cardiovascular damage.


For the Great Lakes Radio Consortium, I’m Chuck Quirmbach.

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State Tests People for Mercury Levels

  • While people are now aware of the health benefits of eating fish rich in omega 3 fatty acids like salmon, a study has shown that the risk of high mercury levels and heart disease might counteract those benefits. (Photo by Bartlomiej Stroinski)

Researchers in one state in the region are trying to
find out how much mercury load their residents are carrying.
So far, 300 samples have been collected for the study. And
the researchers have found that one-quarter of Wisconsin men participating in the study have high levels of mercury. The Great Lakes Radio Consortium’s Stephanie Hemphill reports:

Transcript

Researchers in one state in the region are trying to find out how much mercury load
their residents are carrying. So far, 300 samples have been collected for the study.
And the researchers have found that one-quarter of Wisconsin men participating in the
study have high levels of mercury. The
Great Lakes Radio Consortium’s Stephanie Hemphill reports:


The EPA says the safe level for mercury is one part per million. In the ongoing Wisconsin
study, one in four men and one in eight women have more than that in their bodies. The
study subjects volunteered for the study, so officials say they may not represent the
population overall.


Eating fish contaminated with mercury has long been thought to cause developmental
problems in young children. But now there’s research from Europe showing it can also
contribute to heart disease in adult men.


Lynda Knobeloch is a toxicologist with the Wisconsin Department of Health.


“There have been several studies that show that people who eat fish have less heart
disease because of omega 3 fatty acids, but the European study was able to sort out the
good effects of omega 3s from the bad effects of methyl mercury, and see that the mercury
actually can overwhelm the beneficial effects of omega 3s and actually cause heart disease.”


Wisconsin is requiring its utilities to reduce mercury emissions by 75% over ten years.


For the Great Lakes Radio Consortium, I’m Stephanie Hemphill.

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