据估算，我们平均每周摄入大约 5g 塑料——相当于一张银行卡。

这是世界野生动物基金会委托 University of Newcastle 进行研究得出的结论。其中，喝水摄入最多，普通人每周仅喝水就能摄入多达 1769 个微塑料颗粒 [1]。

论文通讯作者论述胎盘发现微塑料的意义 图源：文献 6

「塑料降解需要时间，当前环境中的微塑料可能已有 40 或 50 年的历史。」与此同时，他也对全球塑料产量的增长深感担忧，「每 10 到 15 年就会翻一番。即使我们现在就截停，到 2050 年，环境中塑料也将是现在的三倍。」[6]

或许进入胎盘是否意味着影响胎儿还未可知，但可以明确的是，无论在环境之中，还是我们体内，微塑料越来越多、无处不在，已是逐渐浮现的事实。

致谢：本文经 清华大学化学系博士 孙亚飞 专业审核

策划：云也｜监制：carollero、gyouza

题图来源：文献 1

参考资料：

[1]https://d2ouvy59p0dg6k.cloudfront.net/downloads/plastic_ingestion_web_spreads.pdf

[2]Garcia MA, Liu R, Nihart A, et al. Quantitation and identification of microplastics accumulation in human placental specimens using pyrolysis gas chromatography mass spectrometry. Toxicol Sci. Published online February 17, 2024. doi:10.1093/toxsci/kfae021

[3]Rodrigo Barbano Weingrill et al, Temporal trends in microplastic accumulation in placentas from pregnancies in Hawaiʻi, Environment International (2023). DOI: 10.1016/j.envint.2023.108220

[4]Zhang N, Li YB, He HR, Zhang JF, Ma GS. You are what you eat: Microplastics in the feces of young men living in Beijing. Sci Total Environ. 2021;767:144345. doi:10.1016/j.scitotenv.2020.144345

[5]https://www.acs.org/pressroom/newsreleases/2020/august/micro-and-nanoplastics-detectable-in-human-tissues.html

[6]https://hsc.unm.edu/news/2024/02/hsc-newsroom-post-microplastics.html

[7]Qian N, Gao X, Lang X, et al. Rapid single-particle chemical imaging of nanoplastics by SRS microscopy. Proc Natl Acad Sci U S A. 2024;121(3):e2300582121. doi:10.1073/pnas.2300582121

[8]https://www.endocrine.org/topics/edc/plastics-edcs-and-health#:~:text=EDCs%20are%20significant%20contributors%20to%20environmentally%20related%20diseases%2C,including%20EDCs%2C%20that%20are%20harmful%20to%20human%20health.

[9]Reiter, Jill & Lee, Men-Jean. (2012). Can Loss of Imprinting in the Placenta Serve as a Biosensor of the Perinatal Environment?. J Mol Biomark Diagn. 3. e109. 10.4172/2155-9929.1000e109.

[10]Cao Y, Li L, Shen K, Liu J. Disease burden attributable to endocrine-disrupting chemicals exposure in China: A case study of phthalates. Sci Total Environ. 2019;662:615-621. doi:10.1016/j.scitotenv.2019.01.255