A day's worth of vitamin-boosted foods and snacks, plus just a single supplement, can add up to excessive and potentially harmful doses of key nutrients over time.

Through the cold war and beyond, the Energy Department and its predecessor agency, the Atomic Energy Commission, denied that workers had received harmful doses of radiation.

I'm not familiar with the ozone levels in bread, but I'm fairly confident they're well below the exposure limit / harmful dose for ozone.

While food manufacturers say that tiny amounts of hidden glutamate are not likely to harm anyone, critics argue that a diet high in processed food could give a harmful cumulative dose to a sensitive person.

They say the mechanism of radiation damage is still poorly understood and the debate about what might be a harmful dose is still open.

But Irene was too intelligent to take a harmful dose.

He warned that commission officials "would be subject to considerable criticism" for conducting experiments in which human subjects were exposed to potentially harmful doses of radiation.

A subsequent investigation by federal authorities found that these involuntary screenings did not result in "a harmful dose" despite violating basic radiation safety protocols.

There is no agreement on what is a harmful dose and some NATO countries want the ammunition banned.

The fact that the sliding arch solution is now to be built confirms the initial view that, by using this method there is much less chance of the construction workers receiving a harmful dose of radiation.