1.   Obviously, the radiation hazard to long-duration space travelers - and the consequent cancer risk - is a major problem.

2.   Accordingly, their plan included proposals for reducing the radiation hazard by using robotics and organic methods of decontamination, among other means.

3.   But critics worry these weapons create radiation hazards on battlefields and at practice ranges.

4.   One vocal consumer group, fanning fears about radiation hazards, has threatened to boycott any store that sells irradiated foods.

5.   Because it is a heavy metal, depleted uranium can be both a chemical poison and a radiation hazard.

6.   Most were sent without protective clothing or any warning about the radiation hazards.

7.   There was no radiation hazard, its chief said.

8.   Workers there are still exposed to radiation hazards, according to the study, which urged stronger protections as well as better monitoring of groundwater contamination and airborne emissions.