▲茶包可以釋放出大量微塑料顆粒(圖片來(lái)源:參考資料[2]) 近年來(lái),從血液到糞便再到胎盤,越來(lái)越多的研究在人體的不同部位檢測(cè)到大量微塑料,它們正伴隨著食物成為人體的一部分。但由于相關(guān)機(jī)制的研究很有限,這些無(wú)處不在的微塑料會(huì)造成怎樣的健康危害,目前還沒(méi)有定論。 在這項(xiàng)研究中,為了檢驗(yàn)微塑料可能的健康威脅,研究團(tuán)隊(duì)利用模式生物水蚤做了一組實(shí)驗(yàn):當(dāng)液體中存在微塑料時(shí),水蚤的游動(dòng)變得不規(guī)則;并且微塑料含量越高,游動(dòng)不規(guī)則的現(xiàn)象越明顯。X射線研究也顯示,它們的解剖形態(tài)出現(xiàn)了一定的異常。 喝下這些摻入微塑料的茶飲,究竟是否會(huì)導(dǎo)致長(zhǎng)期的健康問(wèn)題?對(duì)此,目前沒(méi)有人能給出確切的答案。但可以確定的是,越來(lái)越多的微塑料正通過(guò)各種渠道進(jìn)入地球的不同環(huán)境,當(dāng)然也包括我們的身體。如果擔(dān)心潛在的風(fēng)險(xiǎn),至少在喝茶這件事上,我們可以選擇更安全的喝法。 參考資料:[1] Henrik Krehenwinkel et al., The bug in a teacup—monitoring arthropod–plant associations with environmental DNA from dried plant material. Biol. Lett. (2022) http://doi.org/10.1098/rsbl.2022.0091[2] Laura M. Hernandez et al., Plastic Teabags Release Billions of Microparticles and Nanoparticles into Tea. Environmental Science & Technology (2019) DOI: 10.1021/acs.est.9b02540[3] The DNA of Hundreds of Insect Species Is in Your Tea. Retrieved July 20th, 2022 from https://www.smithsonianmag.com/science-nature/the-dna-of-hundreds-of-insect-species-is-in-your-tea-180980367/[4] Spilling the Tea: Insect DNA Shows Up in World’s Top Beverage. Retrieved June 14th, 2022 from https://www.the-scientist.com/news-opinion/spilling-the-tea-insect-dna-shows-up-in-world-s-top-beverage-70131[5] Plastic teabags release microscopic particles into tea. Retrieved Sept 25th, 2019 from https://www.acs.org/content/acs/en/pressroom/presspacs/2019/acs-presspac-september-25-2019/plastic-teabags-release-microscopic-particles-into-tea.html