Over time, radionuclides may be transferred through soil into crops or animals and build up within food.
7112
放射性核素也可能会被冲入河流、湖泊和海洋，污染鱼类以及其他水产。
Radionuclides can also be washed into rivers, lakes and the sea where fish and seafood could take them up.
7113
食用受污染的食品会对健康产生什么影响？
What are the potential health effects of consuming contaminated food?
7114
在核或放射性紧急情况下食用被放射性核素污染的食品会增加体内辐射量，进而可能加剧健康风险。
Consuming food contaminated with radionuclides in a nuclear or radiologicalemergency will increase the amount of radioactivity in the body and could increase the health risks associated with exposure to radiation.
7115
风险水平取决于摄入哪些放射性核素以及放射性物质摄入量。
The level of risk will depend on which radionuclides have been ingested and the amount of radioactivity that has been incorporated.
For instance, if radioactive iodine is ingested with contaminated food or drink, or inhaled with contaminated air, it will accumulate in the thyroid gland and increase the risk of thyroid cancer, particularly in children.
7117
放射性碘在8天内放射性降低一半（即半衰期），并持续衰变，最终在数周后丧失放射性。
Radioactive iodinereduces its radioactivity in half (so called half-life) within 8 days and eventually stops being radioactive (decays) within few weeks.
To prevent the uptake of radioactive iodine by the thyroid, stable iodine pills (KI pills) are used to saturate the thyroid so radioactive iodine will not accumulate (more information about iodine thyroid blocking at https://www.who.int/publications/i/item/9789241550185 ).
7119
而半衰期为30年的铯放射性同位素会在环境中存留多年。
In contrast, radioactive isotope of caesium with half-life of 30 years will stay in the environment for many years.
7120
它比碘更均匀分布在整个体内。
It is distributed in the whole body more homogeneously than iodine.