Table 1.
Information about patients (age, quantity of milk sample, and abundance of MPs) and morphological and chemical features of the identified microparticles.
| Patient | Age | Milk Quantity (g) | N. of MPs | MP/g | Shape | Size | Colour | Polymer Matrix | Pigment |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 28 | 8.44 | 2 | 0.24 | irregular fragment | ~10 µm | orange | nitrocellulose | |
| irregular fragment | ~6 µm | orange | polyethylene | ||||||
| #2 | 32 | 4.92 | 1 | 0.20 | irregular fragment | ~3 µm | blue | polyethylene | |
| #3 | 32 | 5.83 | 1 | 0.17 | irregular fragment | ~6 µm | black | polyvinyl chloride | |
| #4 | 38 | 5.09 | 2 | 0.39 | irregular fragment | ~2 µm | red | polyvinyl chloride | |
| irregular fragment | ~3 µm | blue | polypropylene | ||||||
| #5 | 36 | 7.08 | 2 | 0.28 | irregular fragment | ~6 µm | red | chlorinated polyethylene | |
| sphere | ~5 µm | grey | polypropylene | ||||||
| #6 | 40 | 1.95 | 4 | 2.05 | irregular fragment | ~5 µm | light blue | polyvinyl chloride | |
| irregular fragment | ~1 µm | blue | Pigment Blue 29 (C.I. Constitution 77007) | ||||||
| irregular fragment | ~10 µm | light blue | Pigment Green 7 (C.I. Constitution 74260) | ||||||
| irregular fragment | ~10 µm | light blue | Pigment Green 7 (C.I. Constitution 74260) | ||||||
| #7 | 38 | 3.49 | 5 | 1.43 | sphere | ~5 µm | brown | polyvinyl alcohol | |
| irregular fragment | ~3 µm | light blue | Pigment Green 7 (C.I. Constitution 74260) | ||||||
| irregular fragment | ~10 µm | brown/grey | nitrocellulose | ||||||
| sphere | ~2 µm | blue | Pigment Blue 29 (C.I. Constitution 77007) | ||||||
| irregular fragment | ~10 µm | light blue | polypropylene | ||||||
| #8 | 36 | 4.21 | 2 | 0.47 | irregular fragment | ~2 µm | red | Pigment Red 101/102 (C.I. Constitution 77491) | |
| irregular fragment | ~10 µm | red | Pigment Red 101/102 (C.I. Constitution 77491) | ||||||
| #9 | 45 | 2.81 | 3 | 1.07 | irregular fragment | ~4 µm | red | Pigment Red 101/102 (C.I. Constitution 77491) | |
| irregular fragment | ~5 µm | yellow/orange | polyethylene | ||||||
| irregular fragment | ~3 µm | light blue | polyvinyl chloride | ||||||
| #10 | 34 | 5.58 | 2 | 0.36 | irregular fragment | ~6 µm | orange | polyethylene | |
| irregular fragment | ~6 µm | blue | polypropylene | ||||||
| #11 | 39 | 2.32 | 0 | 0 | |||||
| #12 | 32 | 3.55 | 2 | 0.56 | irregular fragment | ~2 µm | black | polyethylene | |
| irregular fragment | ~10 µm | green | poly(ethylene-co-vinyl acetate) | Pigment Green 7 (C.I. Constitution 74260 | |||||
| #13 | 41 | 2.76 | 1 | 0.36 | irregular fragment | ~12 µm | blue | polyethylene | |
| #14 | 50 | 4.50 | 3 | 0.67 | irregular fragment | ~3 µm | brown | Pigment Yellow 43 / Brown 6 (C.I. Constitution 77492) | |
| irregular fragment | ~3 µm | light blue | polyvinyl chloride | ||||||
| sphere | ~4 µm | grey | polypropylene | ||||||
| #15 | 33 | 5.99 | 2 | 0.33 | irregular fragment | ~5 µm | orange | polyethylene | |
| irregular fragment | ~6 µm | red | polyvinyl chloride | ||||||
| #16 | 37 | 4.65 | 2 | 0.43 | irregular fragment | ~10 µm | blue | polyethylene | |
| irregular fragment | ~2 µm | transparent | polyethylene | ||||||
| #17 | 32 | 1.64 | 2 | 1.22 | sphere | ~5 µm | transparent | polyethylene | |
| irregular fragment | ~5 µm | brown | Pigment Red 101/102 (C.I. Constitution 77491) | ||||||
| #18 | 41 | 3.10 | 1 | 0.32 | irregular fragment | ~8 µm | black | poly(ethyl methacrylate) | |
| #19 | 38 | 6.06 | 2 | 0.33 | irregular fragment | ~8 µm | orange | nitrocellulose | |
| irregular fragment | ~2 µm | blue/green | polypropylene | ||||||
| #20 | 37 | 4.19 | 3 | 0.71 | irregular fragment | ~3 µm | magenta | polyvinyl chloride | |
| irregular fragment | ~12 µm | light blue | polyvinyl chloride | ||||||
| irregular fragment | ~12 µm | green | polyvinyl chloride | ||||||
| #21 | 40 | 2.36 | 1 | 0.42 | irregular fragment | ~5 µm | blue | acrylonitrile butadiene styrene | |
| #22 | 41 | 5.47 | 0 | 0 | |||||
| #23 | 35 | 3.82 | 0 | 0 | |||||
| #24 | 48 | 2.53 | 5 | 1.98 | irregular fragment | ~2 µm | orange | polystyrene | |
| irregular fragment | ~10 µm | yellow | polyethylene | ||||||
| irregular fragment | ~12 µm | transparent | polyethylene | ||||||
| irregular fragment | ~4 µm | light blue | polypropylene | ||||||
| irregular fragment | ~5 µm | brown | polyester | ||||||
| #25 | 39 | 7.51 | 1 | 0.13 | irregular fragment | ~10 µm | blue | polyamide | |
| #26 | 37 | 5.65 | 2 | 0.35 | irregular fragment | ~6 µm | white/transparent | polyethylene | |
| irregular fragment | ~4 µm | light blue | polypropylene | ||||||
| #27 | 31 | 3.06 | 1 | 0.33 | irregular fragment | ~5 µm | brown | polycarbonate | |
| #28 | 35 | 3.54 | 0 | 0 | |||||
| #29 | 35 | 2.68 | 1 | 0.37 | irregular fragment | ~2 µm | light blue | polyethylene | |
| #30 | 47 | 1.84 | 5 | 2.72 | irregular fragment | ~7 µm | white/transparent | polyethylene | |
| irregular fragment | ~8 µm | yellow/brown | polyethylene | ||||||
| irregular fragment | ~2 µm | white | polyethylene | ||||||
| irregular fragment | ~4 µm | orange | high-density polyethylene | ||||||
| irregular fragment | ~4 µm | blue | polyvinyl chloride | ||||||
| #31 | 49 | 3.85 | 0 | 0 | |||||
| #32 | 42 | 4.21 | 0 | 0 | |||||
| #33 | 45 | 5.10 | 0 | 0 | |||||
| #34 | 42 | 1.54 | 0 | 0 |