Far more worrying are several radioactive chemicals released as particles about one-quarter the size of a grain of sand. These include iodine-131, strontium-90 and cesium-137.
更令人担忧的是一些释放出的颗粒状放射性化学物质，这些颗粒仅仅是沙粒大小的四分之一，它们包括碘- 131、锶- 90和铯- 137。
Unborn children may be exposed to Strontium-90 through drinking water and the diet of the mother.
婴儿在怀孕期间也可能通过母亲的饮食遭受锶- 90的侵袭。
The radioactive isotope Strontium-90, one of the by-products of the bombs, spread into the atmosphere, fell onto the land, was ingested by dairy cows and passed into the milk supply.
炸弹的副产品之一的放射性同位素锶-90扩散到空中，降落到地面，被奶牛摄取，然后通过牛奶供应传递出去。
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