Narrator: This is Science Today. After years
of scientific studies on the possible health risks
associated with electromagnetic fields, or EMFs, the
data is still inconclusive. But there does seem to
be a low association between childhood leukemia and
power line exposure. Richard Luben, a professor of
biomedical sciences at the University of California,
Riverside, says the public should understand just
what "low association" means.
Luben: Just to put it in context, the level
of risk that's associated with power lines, which
is about a one point five fold increase in cancer,
is about the same risk as associated with secondhand
Narrator: The key difference, Luben says, is
literally millions more people are exposed to secondhand
smoke compared to those exposed to power lines.
Luben: So, it's not only a matter of is there
an effect, because I think people who responsibly
look at the data will say that there is an effect
there. There's also a question of how big the effect
is how much risk is really there.
Narrator: For Science Today, I'm Larissa Branin.