碘的含量也很低，这取决于种植的土壤。

The iodine content may also be low, depending on the soil where the produce is grown.

youdao

放射性碘的半衰期为八天，几周内自然衰变。

Radioactive iodine has a half-life of eight days and decays naturally within weeks.

youdao

食品监测的初步结果表明，放射性碘的浓度已经超出日本规定的限度。

Some of the initial food monitoring results show radioactive iodine detected in concentrations above the Japanese regulatory limits.

youdao

He saw that if you take the atomic mass of chlorine, 2 add it to the atomic mass of iodine, divide by two, you get something that is really close to the atomic mass of bromine.

他看到，如果你将氯的原子质量，加上碘的原子质量，除以，得到的数将与,溴的原子质量很接近。

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So iodine deficiency was a real problem and then salt started getting fortified with iodine, and that really corrected a lot of those deficiency problems around the world.

碘缺乏曾经是个大问题,随着加碘盐的逐渐普及,使得全球诸多碘缺乏问题得到了改善

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选