But wasn't MPs detected in human placenta before? [1] > In total, 12 microplastic fragments (ranging from 5 to 10 μm in size), with spheric or irregular shape

But wasn't MPs detected in human placenta before? [1] > In total, 12 microplastic fragments (ranging from 5 to 10 μm in size), with spheric or irregular shape were found in 4 placentas (5 in the fetal side, 4 in the maternal side and 3 in the chorioamniotic membranes); all microplastics particles were characterized in terms of morphology and chemical composition. All of them were pigmented; three were identified as stained polypropylene a thermoplastic polymer, while for the other nine it was possible to identify only the pigments, which were all used for man-made coatings, paints, adhesives, plasters, finger paints, polymers and cosmetics and personal care products. [1]: https://files.catbox.moe/023yyt.pdf https://files.catbox.moe/023yyt.pdf