第二次世界大戰後,美國、前蘇聯及其他國家在1951-1963年之間分別在地面上進行數以百計的核試,427Please respect copyright.PENANAUyfozU8AuL427Please respect copyright.PENANAWGriNRJvgL
427Please respect copyright.PENANAD3EDx2FAax
直至1963年大家互相簽署了停止核試條約,地面引爆核試才得以終止進行;雖然1960-1970年間中國及非洲仍有進行少量微型地面核試。427Please respect copyright.PENANA3HnO6rSB2E
427Please respect copyright.PENANA9oizluczNB
地面核試,無疑會為大自然界帶來影響。427Please respect copyright.PENANAELrFHAWl2w
其中一隻名為137Cs的幅射性原子,不但能對生物帶來傷害,且具有水溶性特質,其半衰期亦達30.2年之多;427Please respect copyright.PENANAIkJKxaHzUG
亦即是說渡過30.2年之後,其濃度才會自然地減半。427Please respect copyright.PENANAnTtB5qnBNf
427Please respect copyright.PENANAEIU17Hum91
427Please respect copyright.PENANAEn3O0gjwmJ
(圖2)植物普遍需要鉀元素(K)輔助生長,因此天生擁有相應的蛋白質負責吸取泥土的鉀元素。427Please respect copyright.PENANA3OjEaggmKT427Please respect copyright.PENANAcp4FFIkh4L
427Please respect copyright.PENANAKR4msjuUOk
然而基於137Cs與K的特質非常相似,植物不其然間亦會因而吸取了帶有幅射性的137Cs原子。427Please respect copyright.PENANAdJEonSl7RY
427Please respect copyright.PENANA5RqXHFl8Jp
如果往植物施上含鉀元素(K)或銨 (NH4)的肥料,均可大幅度減低植物吸取泥土間137Cs的效率。427Please respect copyright.PENANAwc42Jqq5w8
427Please respect copyright.PENANAE7T9MLGwFh
427Please respect copyright.PENANAMLEWnx4f1f
(圖3)科學家審視2017-2019年美國各地的蜜糖商品,發現122個樣本中並有68個樣本測量出137Cs的存在。427Please respect copyright.PENANAZrLjQjeFxi427Please respect copyright.PENANAqs0xVYnP2n
427Please respect copyright.PENANAeqCAqidZCF
不過其含量非常之低,平均僅約0.03Bq 137Cs kg−1,最高濃度的樣本為19Bq 137Cs kg−1,依然遠低於美國FDA制定的1200Bq 137Cs kg−1安全界線。427Please respect copyright.PENANAv43t6bvjt4
427Please respect copyright.PENANAwHVvWkobdr
研究還發現,當地蜜糖樣本是否含有137Cs原子,與當地泥土的137Cs含量並無任何關連。427Please respect copyright.PENANA1spYJMOKMG
427Please respect copyright.PENANAeyYSCv72tj
427Please respect copyright.PENANAsymF8S0uXP
無論如何,核廢理的處理與人類生活健康的議題,均需密切關注,不容忽視。427Please respect copyright.PENANAoVdk1IC3O7
427Please respect copyright.PENANATMPlak1Ndo
427Please respect copyright.PENANAVyon3eCaKs
427Please respect copyright.PENANA0F9lVJllm6
427Please respect copyright.PENANA8MXJmC3TcR
427Please respect copyright.PENANAXcftkF0qet
如果想我快啲出文的話,請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark,這對我非常之重要。427Please respect copyright.PENANAhrTZWlPkV2
427Please respect copyright.PENANAcDDNrm7Mlz
Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc427Please respect copyright.PENANA7PaNhMcUiB
427Please respect copyright.PENANA4laaZyHSAP
同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」,以課金的方式推動我繼續搜羅資料寫文,多謝。427Please respect copyright.PENANAVct18fmKrt
427Please respect copyright.PENANAJgMaZ7osPE
Link:427Please respect copyright.PENANAqmZmOEZDtO
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio427Please respect copyright.PENANAYohPuozuTI
427Please respect copyright.PENANA7bBy3Jq9xc
427Please respect copyright.PENANA8yl7fi8wYG
除非Facebook及IG重開侵侵的account,否則我的IG將不會再作更新,只會寄居本土LIHKG及Penana。427Please respect copyright.PENANAyN5TE2Jn0K
427Please respect copyright.PENANATzsrlYrBmQ
Ref1:https://www.nature.com/articles/s41467-021-22081-8#MOESM3427Please respect copyright.PENANA0jI1fA4RIc