The main factors of radiation hazards in uranium mines are radioactive dust, radon and its daughters.

铀矿山的主要辐射危害因素是放射性粉尘、氡气及其子体。

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"The point is to prevent radioactive dust from entering the lungs and the digestive tract," said Gourmelon.

Gourmelon表示，“重点在于防止放射性粉尘吸入肺部或消化道。”

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And air movement must be minimized to avoid stirring up and resurrecting the bane of shelter workers, radioactive dust.

空气流动也要尽可能的被控制在最低限度，以避免放射性尘埃被搅动起来对工人们造成再次伤害。

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If the bombs exploded on the ground, rather than in the air, radioactive dust could spread across hundreds of square kilometres.

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The danger from nuclear waste comes mainly from dust-like particles containing radioactive isotopes of iodine, cesium and strontium that could be released if the reactor fuel is allowed to become too hot.

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Radioactive isotopes accumulate in milk after they spread through the atmosphere, fall to earth in rain or dust, and settle on vegetation, where they are ingested by grazing cattle.

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