Much of what’s known about the health impacts of radiation comes from
studies of acute exposure — for example, the atomic blasts that leveled
Hiroshima and Nagasaki in Japan or the nuclear disaster at Chernobyl in
Ukraine. Studies of those events provided grim lessons on the effects of
high-level exposure, as well as the lingering impacts on the environment
and people who were exposed. Such work, however, has found little evidence
that the health effects are passed on across generations.
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