核辐射对人体有哪些伤害--章仁根的blog

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核辐射对人体有哪些伤害 | 2011-3-18 8:54:00

1、急性核辐射性损伤

照射剂量超过1Gy(单位：戈)时可引起急性放射病或局部急性损伤；在剂量低于1Gy时，少数人可出现头晕、乏力、食欲下降等轻微症状；剂量在1-10Gy时，出现以造血系统损伤为主；剂量在10-50Gy时，出现以消化道为主症状，若不经治疗，在两周内100%死亡；50Gy以上出现脑损伤为主症状，可在2天死亡。急性损伤多见于核辐射事故。

2、慢性核辐射损伤

全身长期超剂量慢性照射，可引起慢性放射性病。局部大剂量照射，可产生局部慢性损伤，如慢性皮肤损伤、造血障碍、白内障等。慢性损伤常见于核辐射工作的职业人群。

慢性核辐射损伤

3、胚胎与胎儿的损伤

胚胎和胎儿对辐射比较敏感，在胚胎植入前接触辐射可使死胎率升高；在器官形成期接触，可使胎儿畸形率升高，新生儿死亡率也相应升高。据流行病学调查显示，在胎儿期受照射的儿童中，白血病和某些癌症的发生率较对照组为高。

4、远期效应

在中等或大剂量范围内，核辐射致癌已为动物实验和流行病学调查所证实。在受到急慢性照射的人群中，白细胞严重下降，肺癌、甲状腺癌、乳腺癌和骨癌等各种癌症的发生率随照射剂量增加而增高。

5、受核辐射污染后的后遗症问题

受辐射污染后6个月，会发生的机体变化，包括晶体浑浊、白内障、男性睾丸和女性卵巢受影响导致永久不育、骨髓受损出现造血功能障碍，以及出现各种癌症。

另亦会有遗传效应，令生殖细胞基因或染色体发生变异，导致畸胎等问题

By:章仁根 | 阅读全文 | 回复(13) | 引用通告 | 编辑

标签：核辐射人体的损伤

Re:核辐射对人体有哪些伤害 | 2011-3-18 8:56:33

By:章仁根 | 个人主页 | 引用 | 返回 | 删除 | 回复

原创 | 2016-9-6 17:15:19

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原创 | 2016-9-28 16:51:00

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原创 | 2016-9-30 11:28:11

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Re:在漫画中识别身边的违章 | 2016-10-16 8:18:12

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Re:在漫画中识别身边的违章 | 2016-10-21 15:11:02

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Re:在漫画中识别身边的违章 | 2017-2-18 15:09:54

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