radiation due to nuclear technology should eventually increase our cancer risk by 0.002% (one part in 50,000), reducing our life expectancy by less than one hour. The genetic risks of nuclear power are equivalent to delaying parenthood by 2.5 days, or of men wearing pants an extra 8 hours per year.
this chart shows how much radiation a person can expect to absorb from different external factors. It was created shortly after the Japanese nuclear accident in 2011