Table 2.
Research Object | Particle Size | Material | Number of Particles | Concentration | Mode of Exposure | Exposure Time | Summary | Reference |
---|---|---|---|---|---|---|---|---|
Zebrafish | 2.34 ± 0.07 μm | PLABio MPs | - | 2.5, 5 mg/L | In water | 30 days | PLABio MPs at concentrations of 2.5 and 5 mg/L could accumulate in the liver. | [45,55] |
Zebrafish | 5 μm | PS | 2.9 × 102, 2.9 × 103, 2.9 × 104 particles/mL | 20, 200, 2000 μg/L | In water | 7 days | PS-MPs accumulated in the fish liver after 7 days of exposure. | [27] |
Male crab C. japonica | 5 μm | PS | 1.0 × 103 particles/mL | 0.68 × 10−4 mg/mL | In water | 7 days | PS-MPs accumulated the most in crab hepatopancreas. | [56] |
Male mice | 5, 20 μm | PS | 1.46 × 106 items (5 μm), 2.27× 104 items (20 μm) |
0.1 mg/day | Oral gavage | 28 days | After 4 weeks of exposure, the maximum tissue concentration of PS-MPs in the liver was 0.303 ± 0.029 mg/g. | [29] |
Marine medaka | 10 μm | PS | - | 2, 20, 200 μg/L | In water | 60 days | PS-MPs were accumulated in the liver of marine medaka at all exposure doses. | [53,57] |
Marine medaka | 10 μm | PS | 1.82 × 1010 particles/m3 | 10 mg/L | In water | 30–60 days | It was observed that over 30 spherical PS with a diameter ≤3 μm accumulated in the exposed group. | [48] |
Male Swiss mice | 35.46 ± 18.17 μm | PE | - | 60 mg/L | Oral gavage | 7 days | PE-MPs could accumulate in the mouse liver. | [54,58] |
Red tilapia | 70~90 μm | PS | 3.51 × 104 particles/mL | 100 μg/L | In water | 14 days | PS-MPs could accumulate in the tilapia liver, and it showed a generally increasing tendency with time. | [44] |
PLABio MPs: polylactic acid bio microplastics; -: unknown.