排出大海的塑膠,經過紫外線、物理或者生物分解的作用等,將會拆解成為微形塑膠粒。940Please respect copyright.PENANAzccSOYtheb
940Please respect copyright.PENANA0P6NYXZpS4
如圖中所示,被分解的膠粒將依據其體積大細,而被賦上不同的命名。940Please respect copyright.PENANAU8nVsz4gIy
940Please respect copyright.PENANA6wdgwwRMeG
(圖2)箭嘴所指的為3μm的microplastic,可以見得到microplastic會黏在細胞的表面,同時細胞亦有能力將microplastic吞進內部。940Please respect copyright.PENANAxAKeqhyGw9
940Please respect copyright.PENANAeMZU52THU8
940Please respect copyright.PENANAxmFu2VJ8L1
(圖3)塑膠粒體積過大的話,細胞便無法把它吞進內部。940Please respect copyright.PENANAtYEaHcN27U
940Please respect copyright.PENANAQ0GhpYafzY
但是,如圖中所示,若某特定會被細胞外部接收器吸收的物質黏附在體積相對為大的塑膠粒表面,大型塑膠粒便能經由細胞接收器輔助進入體內。940Please respect copyright.PENANAEzPCvAuRMv
940Please respect copyright.PENANAY5ZX8hpcV0
(圖4)科學家證實(Ref2),對比浸在乾淨水裡,浸在淡/鹹水4星期的塑膠粒將更有效率進入細胞內部,而淡水及鹹水兩者對塑膠粒的影響則為相約。940Please respect copyright.PENANAB1ncmYLOZG
940Please respect copyright.PENANAwV7W93GLGr
這相信是因為水裡不同的物質黏附在塑膠粒表面上,從而輔助塑膠粒進入細胞內。940Please respect copyright.PENANAr1ikRcvFZb
940Please respect copyright.PENANAEULoW47pKr
而乾淨水並無外來物質,因此沒能輔助塑膠粒進入細胞內部,故比浸在淡/鹹水4星期的塑膠粒較為遜色。940Please respect copyright.PENANA3seAjRK6h8
940Please respect copyright.PENANAbIwKnAXffY
940Please respect copyright.PENANAf2nGZ0DIoz
(圖5)現實中,被分解的膠粒在大海中會遇上各種外來物質,形成名為Ecocorona的外膜。940Please respect copyright.PENANAGHEuqZWiLt
940Please respect copyright.PENANANRDEoyv4eC
940Please respect copyright.PENANAs07T7Advg1
與體積相同的塑膠粒作對比,擁有Ecocorona外膜的塑膠粒會比工業原始出產版本的塑膠粒更有效率進入人體細胞內部(Ref1)。940Please respect copyright.PENANAs6UdbdAaa1
940Please respect copyright.PENANA0D2mZnzfTv
由此可見,長期攝取排放在海洋中的塑膠粒對身體的影響究竟會有多大這話題,絕對值得作深入的研究和檢討。940Please respect copyright.PENANA6umVnMS7U6
940Please respect copyright.PENANAW4Wh6YEmty
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。940Please respect copyright.PENANA59PYBa2KDC
940Please respect copyright.PENANAd63xLrRuJq
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/toc940Please respect copyright.PENANAiAyMnb6sGR
940Please respect copyright.PENANAJL5KowsAuu
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。940Please respect copyright.PENANAVfx1S0U1xg
940Please respect copyright.PENANApK3gbk7t8k
Link:940Please respect copyright.PENANAmNKL9Cs8Qs
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio940Please respect copyright.PENANAG3HcRKcTZM
940Please respect copyright.PENANA8efN1fLUhZ
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。940Please respect copyright.PENANAei097TZAmL
940Please respect copyright.PENANATOyfHLNAQB
https://www.instagram.com/potatopigtongue/940Please respect copyright.PENANAogzNpBTxqm
940Please respect copyright.PENANA0QNLzW1wzG
940Please respect copyright.PENANABZ2BTtstiZ
Ref1:https://www.nature.com/articles/s41559-017-0116940Please respect copyright.PENANA1qFErat2UH
Ref2:https://advances.sciencemag.org/content/6/50/eabd1211/tab-pdf940Please respect copyright.PENANAFjtb3kK1Ue
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科普專欄–薯不揀單
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薯仔聞茱莉
篇 #120
深入淺出–排放到大海的塑膠粒
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